Louisville Built Front Load Washer

Transcription

1 GE Appliances & Lighting Technical Service Guide October 2014 Louisville Built Front Load Washer GFWS2500/GFWS2505 GFWS2600/GFWS2605 GHWS3600/GHWS3605 GFWS3700/GFWS3705 GFWR4800/GFWR4805 GE Appliances & Lighting General Electric Company Louisville, Kentucky

2 Safety Information Important Safety Notice The information in this service guide is intended for use by individuals possessing adequate backgrounds of electrical, electronic, and mechanical experience. Any attempt to repair a major appliance may result in personal injury and property damage. The manufacturer or seller cannot be responsible for the interpretation of this information, nor can it assume any liability in connection with its use. Warning To avoid personal injury, follow OSHA Lock-out Tag-out Standard requirements controlling and maintaining a zero energy state. To perform necessary live power electrical diagnostics, electrical safety personal protective equipment (PPE) and barriers must be utilized to comply with OSHA electrical safety requirements. Reconnect all Grounding Devices If grounding wires, screws, straps, clips,nuts, or washers used to complete a path to ground are removed for service, they must be returned to their original position and properly fastened. GE Appliances & Lighting Technical Service Guide Copyright 2014 All rights reserved. This service guide may not be reproduced in whole or part in any form without written permission from the General Electric Company.

3 Table of Contents Safety Requirements 7 Introduction 8 Nomenclature 9 Electrical Specifications 10 Tools Needed 11 Installation 12 Adaptive Vibration Control 12 Pedestal Installation 12 Product Operation 14 Diagnostics 20 Service Mode 20 Service Mode Entry 20 Service Mode Exit 20 Service Mode Tests 21 Consumer Mode 25 Consumer Mode Entry 25 Consumer Mode Navigation 25 Consumer Mode Exit 25 Fault Codes 26 Faults Faults A Faults 12-CB 28 Faults CC-D4 29 Faults D5-E8 30 Electronic Board Pin Outs 31 Component Locator Views 34 Top Panel Location 34 Front Panel Location 34 Riser Location 34 UI Board Location 34 Tub Lamp Location 34 Drain Clean Out Cover Location 34 Door Lock Assembly Location 34 Control Panel Assembly Location 34 Vent Tube Location 35 Diverter Motor Assembly Location 35 Water Valve Assembly Location 35 Dispenser Assembly Location 35 RJ45 Board Location 35

4 Overnight Dry Fan Location 35 Pressure Sensor Location 35 Top Counterweight Location 35 IMC Board Location 35 Stator Location 36 Heater Location 36 RJ45 Connection Location 36 Rotor Location 36 Hall Sensor Location 36 Thermistor Connector 36 Main Fill Hose Location 36 Thermistor Location 36 Vent Location 36 Tub and Basket Exploded View 37 Door Exploded View 37 Tub and Structure 38 Door Assembly 38 Door Assembly Removal 38 Door Frame 38 Door Frame Removal 38 Door Glass 39 Door Glass Removal 39 Door Hinge 39 Door Hinge Removal 39 Door Handle 40 Door Handle Removal 40 Door Cover 40 Door Cover Removal 40 Door Cover Protect 40 Door Cover Protect Removal 41 Door Lock Assembly 41 Door Lock Assembly Strip Circuit 41 Door Lock Assembly Tests 41 Door Lock Assembly Diagnostics 41 Door Lock Assembly Removal 42 Tub Gasket 42 Tub Gasket Removal 42 Tub Gasket Reinstallation 42 Tub Lamp 43 Tub Lamp Strip Circuit 43 Tub Lamp Diagnostics 43 Tub Lamp Removal 43 Control Panel 43 Control Panel Removal 44 UI Board 44 UI Board Strip Circuit 45 UI Board Tests 45 UI Board Diagnostics 45 UI Board Removal 45 4

5 Button Tree 45 Button Tree Removal 45 IMC Board 47 IMC Board Tests 47 IMC Board Diagnostics 47 IMC Board Removal 47 RJ45 Board 48 RJ45 Board Strip Circuit 48 RJ45 Board Removal 48 Top Panel 49 Top Panel Removal 49 Front Panel 49 Front Panel Removal 49 Rear Panel 50 Rear Panel Removal 50 Leveling Leg 50 Riser 51 Riser Removal 51 Front Tub 51 Front Tub Removal 51 Inner Tub 53 Inner Tub Removal 53 Balance Ring 53 Balance Ring Removal 53 Baffle 54 Baffle Removal 54 Rear Tub 55 Rear Tub Removal 55 Drive System 56 Rotor 56 Rotor Removal 56 Stator 56 Stator Strip Circuit 57 Stator Diagnostics 57 Stator Removal 57 Hall Sensor 58 Hall Sensor Strip Circuit 58 Hall Sensor Tests 58 Hall Sensor Diagnostics 58 Hall Sensor Removal 58 Fill System 59 Water Valve Assembly 59 Water Valve Strip Circuit 59 Water Valve Tests 59 Water Valve Removal 59 Pressure Sensor 60 Pressure Sensor Strip Circuit 60 Pressure Sensor Chart 60 5

6 Pressure Sensor Tests 60 Pressure Sensor Removal 60 Heater 61 Heater Strip Circuit 61 Heater Tests 61 Heater Diagnostics 61 Heater Removal 61 Thermistor 62 Thermistor Chart 62 Thermistor Tests 62 Thermistor Removal 62 Dispenser Assembly 62 Dispenser Assembly Tests 63 Dispenser Assembly Diagnostics 63 Dispenser Assembly Removal 63 Diverter Motor Assembly 64 Diverter Motor Assembly Strip Circuit 64 Diverter Motor Assembly Tests 64 Diverter Motor Assembly Diagnostics 64 Diverter Motor Assembly Removal 65 Wash System 66 Drain Pump 66 Drain Pump Strip Circuit 66 Drain Pump Tests 66 Drain Pump Diagnostics 66 Drain Pump Removal 66 Recirculation Pump 67 Recirculation Pump Strip Circuit 67 Recirculation Pump Tests 68 Recirculation Pump Diagnostics 68 Recirculation Pump Removal 68 Overnight Dry Fan 68 Overnight Dry Fan Strip Circuit 68 Overnight Dry Fan Tests 68 Overnight Dry Fan Diagnostics 68 Overnight Dry Fan Removal 68 Schematic 70 Index 71 6

7 Safety Requirements Ge Factory Service Employees are required to use safety glasses with side shields, safety gloves and steel toe shoes for all repairs. Steel Toed Work Boot Electrically Rated Glove and Dyneema Cut Resistant Glove Keeper Dyneema Cut Resistant Glove Cut Resistant Sleeve(s) Plano Type Safety Glasses Prescription Safety Glasses Safety Glasses must be ANSI Z compliant Brazing Glasses WARNING Prior to disassembly of the front load washer to access components, GE Factory Service technicians are REQUIRED to follow the Lockout/Tagout (LOTO) 6 Step Process: Step 1 Plan and Prepare Step 2 Shut down the appliance Step 3 Isolate the appliance Step 4 Apply LOTTO device and lock Step 5 Control (discharge) stored energy Step 6 Try It verify the appliance is locked out 7

8 Introduction Louisville built front load washers feature a new look, a new direct drive motor system, dual balance rings, combined machine control/inverter board, recirculation pump, overnight dry fan and integrated riser. Some features are not available on all models, see below. All models have the following: 2 Electronic Boards User Interface (UI) Board - The UI board provides user interface and software instructions defining wash algorithms. Inverter Machine Control (IMC)) Board - The IMC board generates 3-phase DC voltage used to drive the motor and contains the relays used to operate loads. Inverter Controlled Direct Drive Motor Rotor Stator Hall Sensor Dual Balance Rings Front Balance Ring Rear Balance Ring Some Models have the following: LED Tub Lamp Recirculation Pump Overnight Dry Fan Integrated Riser GFWS2500F GFWS2505F GFWS2600F GFWS2605F Model Summary Table GFWR2700 / GFWR2705 GHWS3600/ GHWS3605 GFWS3700 / GFWS3705 GFWR4800F GFWR4805F Capacity 4.3 cubic ft 4.3 cubic ft 4.3 cubic ft 4.6 cubic ft 4.6 cubic ft 4.6 cubic ft Rinse Levels 2 - normal/ extra 2 - normal/ extra 2 - normal/ extra 3- normal/ extra/max 3- normal/ extra/max 3- normal/ extra/max Recirc Pump No No No No Yes Yes Tub Lamp No No No Yes No Yes Over night No No No No No Yes Dry Integrated Riser No No Yes No No Yes 8

9 Nomenclature G F W R F W W Brand G - GE P - Profile Configuration F - Front Load Model Year F Color Code WW - White MC - Metallic Carbon RR - Ruby Red Product W - Washer Options Package Key Feature S - Standard R - Riser The first two characters of the serial number identify the month and year of manufacture. The letter designating the year repeats every 12 years. Example SD123456S = September 2014 A - JAN D - FEB F - MAR G - APR H - MAY L - JUN M - JUL R - AUG S - SEP T - OCT V- NOV Z - DEC A D F G H L M R S T V Z The Mini Manual is located inside the control panel. It is taped to the back of the UI board. The Model/Serial tag is located on the front panel behind the door. 9

10 Electrical Specifications Component Operating Voltage Resistance Wattage Frequency Diverter Motor Motor VAC 1.4 kω N/A N/A Position Switch - 5 VDC Door Lock Solenoid 120 VAC 50 Ω N/A N/A Drain Pump 120 VAC 14.8 Ω N/A N/A Flow Meter 12 VDC N/A N/A N/A Heater 120 VAC 14.6 Ω ~1000 N/A Overnight Dry Fan 12 VDC N/A N/A N/A Pressure Sensor 5 VDC N/A N/A See Chart * Below Recirculation Pump 120 VAC 14.6 Ω N/A N/A Stator 3 Phase DC 16.6 Ω per N/A N/A phase Thermistor 5 VDC See Thermistor N/A See Chart ** Below Chart Tub Lamp 3.1 VDC N/A N/A N/A Water Valve 120 VAC 1 kω N/A N/A Frequency Chart * Thermistor Chart ** Water Level Name Amount of Frequency water in basket Empty N/A Hz Steam Reset Hz Steam Set Hz Foam Reset Hz Foam Set Hz Main Reset Hz Main Set Hz Door Drain Reset Hz Door Drain Set Hz Overflow Set Hz Resistance Temperature 36.5 k 32 F 14.7 k 68 F 12.0 k 77 F 9.8 k 86 F 8.0 k 95 F 6.6 k 104 F.5 k 257 F 10

11 Tools Needed Large flat head screwdriver Small flat head screwdriver #2 Phillips head screwdriver 1/4 Nut driver 5/16 Nut driver T20 Torx T25 Torx Hose clamp pliers Slip joint pliers Side cutter pliers 3/8 socket 1/2 socket 9/16 socket 10mm socket 12 extension NO SPECIAL TOOLS NEEDED 11

12 Installation Adaptive Vibration Control This GE washer is equipped with Adaptive Vibration Control Technology. Using information about the floor, this system can reduce vibration and improve spin performance in some installations by adapting the spin cycle. The DEFAULT configuration is specially designed to provide optimal performance across the widest range of floor types. Follow the procedure below to enable more specific adaptive settings. The washer can be returned quickly and easily to the DEFAULT configuration at any time using the same procedure. Floor Type Selection 1. Place control in the idle state. (Make sure no cycles or options are selected but that the washers Power is on.) 2. Press and hold the Power and Spin keys at the same time for 3 seconds. 3. Only the Power, Start and display lights will be lit in this mode. 4. Pressing the Power key in this mode will return the control to the idle state and the defaults will be restored. 5. Rotate the selector knob to select the Floor Type, per the table below. Display F0 F1 F2 F3 F4 F5 Floor Type Default Concrete Floor Second Floor, all surface types First Floor, Tile surface First Floor, Linoleum surface `First Floor, wood surface 6. Press the Start key to make selection. a. For riser models, the programming of the washers Adaptive Vibration Control is now complete. b. For all other models (GFWS2500, GFWS2505, GFWS2600, GFWS2605, GHWS3600, GHWS3605, GFWS3700 and GFWS3705) proceed to the pedestal selection (steps 7&8). 7. Rotate the selector knob to select the Pedestal Type per table below. Display P0 P1 Pedestal Type No Pedestal (Default Setting) Pedestal 8. Press the Start key to make selection, the programming of the washers Adaptive Vibration Control is now complete. Pedestal Installation Remove the packaging. Flatten the product carton to use as a pad to lay the washer or dryer down on its side. Continue using the carton to protect the finished floor in front of the installation location. Washer Prep 1. Carefully lay down the washer on its back to access the leveling legs on its bottom. 2. The washer shipping bolts must remain in place until the washer is returned to an upright position.

13 3. Use an adjustable wrench to remove the washer leveling legs. Pedestal Prep 1. Pull the pedestal drawer out as far as it will go. 2. Remove screws from drawer slides. Slide drawer out of the base and set aside. Install the pedestal to the washer 1. Place the pedestal against the bottom of the unit. Check to be sure the drawer front is at the front of the washer. 2. Align the holes in the pedestal with the holes in the bottom of the unit. Use a 9/16 in. socket wrench to install the 4 washer mounting bolts through the pedestal and into the unit do not tighten. 3. Slide the pedestal toward the unit until it is aligned front to back. Use a 9/16 in. socket wrench to securely tighten the bolts. 4. Stand the washer or upright. Move it close to its final location. 5. Make sure that the washer is level by placing a level on top. Check side to side and front to back. 6. Use an open ended wrench to adjust the legs in and out. Tighten the lock nut against the bottom of the pedestal. Note: To minimize vibration, the locking nuts must be tight. 7. Reinstall the drawer. 8. Remove the 4 shipping screws on the back side of the washer. 13

14 Product Operation Throughout this manual, features and appearance may vary depending on model. Models: GFWR4805, GFWR4800 Models: GFWS3705, GFWS3700, GHWS3605, GHWS3600 Models: GFWR2705, GFWR2700

15 Models: GFWS2605, GFWS2600 Models: GFWS2505, GFWS Power Press to wake up the display. If the display is active, press to put the washer into standby mode. NOTE: Pressing Power does not disconnect the appliance from the power supply. 2. Wash Cycles The wash cycles are optimized for specific types of wash loads. The chart below will help match the wash setting with the loads. The GentleClean lifters lightly tumble the clothes into the water and detergent solution to clean the load. Normal/Mixed Loads* Whites* Bulky Bedding* Active Wear* Power Clean* Sanitize* For heavily to lightly soiled colorfast cottons, household linens, work and play clothes. For heavily to lightly soiled white laundry, work and play clothes. For large items such as comforters, blankets, small rugs and similar bulky items. For active sports, exercise and some casual wear clothes. Fabrics include modern technology finishes and fibers such as spandex, stretch and microfibers. For heavily soiled items which require extra cleaning power. For increased water temperature which will sanitize and kill more than 99.9% of many common bacteria found in home laundry.

16 Allergen* Towels/Sheets* Delicates/Hand Wash Speed Wash or Quick Wash Single Item Rinse + Spin Drain + Spin Basket Clean Soil Temp Rinse Start/Pause PreWash PreSoak ewash Overnight Dry My Cycle Stain Removal Guide Add a Garment Light For removing common allergens such as dust mites and pet dander. For items such as towels, sheets, pillowcases and dish rags. For items labeled hand-washable with light soils. Provides gentle tumbling and soak during wash and rinse. For lightly soiled items that are needed in a hurry. Cycle time is approximately 30 minutes, depending on selected options. For washing one heavily or lightly soiled item. The washer uses this setting to optimize the wash and spin cycle for a single small or medium sized garment. To quickly rinse and spin out any items at any time. To quickly drain and spin out any items at any time. Use for cleaning the basket of residue and odor. Recommended use of at least once per month. NOTE: Never load laundry while using Basket Clean. The laundry may become damaged. See the Care and Cleaning section. Changing the Soil level increases or decreases the wash time to remove different amounts of soil. Adjust to select the proper water temperature for the wash cycle. Changing Rinse will change the number of rinses the cycle will use. Press to start a wash cycle. If the washer is running, pressing it once will pause the washer and unlock the door. NOTE: If the washer is paused and the cycle is not restarted within 15 minutes, the current wash cycle will be cancelled. Prewash is an extra wash before the main wash. PreWash must be selected prior to pressing Start. The PreWash feature will fill the washer (adding the prewash detergent); tumble the clothes, drain and spin. Then the washer will run the selected wash cycle. For soaking garments prior to the PreWash (if selected) and/or wash cycle. This option begins with a brief tumble and then proceeds to soak the clothes for a specified period of time. Once complete, the cycle will begin automatically. PreSoak must be selected prior to pressing Start. The PreSoak time is set in ½ hour increments, with the maximum presoak set option of 8 hours. Use ewash to save energy on specified wash cycles. ewash cannot be used with Allergen, Sanitize, Power Clean and Basket Clean. This feature will tumble clothes and introduce a constant stream of air into the machine compartment upon completion of select wash cycles. Used to save a favorite cycle. The Stain Removal Guide is preprogrammed with the ideal wash and rinse settings to tackle five common stains: grass, wine, blood, tomato and dirt. If a garment needs to be added after the cycle has started, press the Add a Garment button and the unit will unlock the door, allowing additional garments. The Add a Garment feature is only available when the LED is lit on the button. After a certain point in the cycle, the LED will not be lit any longer and adding a garment is not allowed. The basket light will turn on and remain on for 5 minutes when the door opens, Start/Pause button is pressed, or by pressing the Light button. The basket light can be turned off by pressing and holding the Light button.

17 Volume Lock Control Add Steam Delay Wash emonitor To adjust the volume of the unit, press the Volume button to select the desired level. The controls can be locked to prevent any selections from being made. Add Steam adds steam into the washer early in the cycle to assist with loosening stains on the Towels/Sheets, Normal, Whites, Bulky, Active Wear, Power Clean, Sanitize or Allergen cycles. The start of a wash cycle can be delayed for up to 24 hours. The emonitor lights display the relative energy use of the selected cycle and options. They are provided as an energy guide and range from Good (1 light) to Better (5 lights). 3. Soil Changing the soil level increases or decreases the wash time to remove different amounts of soil. 4. Temp Adjust to select the proper water temperature for the wash cycle. The PreSoak and PreWash rinse water is always cold to help reduce energy usage and reduce setting of stains and wrinkles. 5. Spin Changing the spin speed changes the final spin speed of the cycles. 6. Rinse Changing rinse will change the number of rinses the cycle will use. To change the rinse option, press Rinse until you have reached the desired setting. On some models you can choose between Normal, Extra, Max (a third rinse), and no rinse. In order to select no rinse, press the Rinse button until no lights are lit in the rinse window. 7. Start/Pause Press to start a wash cycle. If the washer is running, pressing it once will pause the washer and unlock the door. It will take a few seconds for the door to unlock after pressing Pause. Press again to restart the wash cycle. NOTE: If the washer is paused and the cycle is not restarted within 15 minutes, the current wash cycle will be cancelled. 8. PreWash Prewash is an extra wash before the main wash. Use it for heavily soiled clothes or for clothes with a care label that recommends prewashing before washing. Be sure to add liquid or powder high efficiency detergent, or the proper wash additive to the prewash dispenser. 9. Presoak For soaking your garments prior to the PreWash (if selected) and/or wash cycle. This option begins with a brief tumble and then proceeds to soak the clothes for a specified period of time. Once complete, the cycle will begin automatically. 10. ewash (On Some Models) Use ewash to save energy on specified wash cycles. 17

18 11. Overnight Dry (On Some Models) Overnight Dry is available on the following cycles: Active Wear, Whites, Normal and Single Item. Overnight Dry is intended for smaller loads only. This feature is intended for use when clothes need to be washed, dried and ready to wear or finished the next morning. This feature will tumble clothes and introduce a constant stream of air into the machine compartment upon completion of select wash cycles. Clothes can be removed at any time by pressing Pause. 12. My Cycle (On some models there is a My Cycle 1 and My Cycle 2) To save a favorite cycle, set the desired settings for wash cycle, soil level, spin speed and wash temp settings and hold down the My Cycle button for 3 seconds. A beep will sound to indicate the cycle has been saved. To use your custom cycle, press the My Cycle button before washing a load. To change the saved cycle, set the desired settings and hold down the My Cycle button for 3 seconds 13. Stain Removal Guide (On Some Models) The Stain Removal Guide is pre-programmed with the ideal wash and rinse settings to tackle five common stains: grass, wine, blood, tomato and dirt. To use this feature, select the desired wash cycle and then press the Stain Removal Guide button until the stain you want to remove is highlighted. Once selected, press the Start button to start the cycle. 14. Add A Garment (On Some Models) If you need to add a garment after the cycle has started, press the Add a Garment button and the unit will unlock the door, allowing additional garments. The Add a Garment feature is only available when the LED is lit on the button. After a certain point in the cycle, the LED will not be lit any longer and adding a garment is not allowed. 15. Light (On Some Models) The basket light will turn on and remain on for 5 minutes when the door opens, Start/ Pause button is pressed, or by pressing the Light button. 16. Volume To adjust the volume of the unit, press the Volume button to select the desired level. 17. Lock Control You can lock the controls to prevent any selections from being made. Or you can lock or unlock the controls after you have started a cycle. Children cannot accidentally start the washer by touching buttons with this option selected. To lock the washer, press and hold the Lock Control button for 3 seconds. 18. Add Steam Add Steam adds steam into the washer early in the cycle to assist with loosening stains on the Towels/ Sheets, Normal, Whites, Bulky, Active Wear, Power Clean, Sanitize or Allergen cycles. 19. Delay Wash You can delay the start of a wash cycle for up to 24 hours. Press the Delay Wash button to choose the amount of time you want to delay the start of the wash cycle. Once the desired time is reached, press the Start button. The machine will count down and start automatically at the correct time. 18

19 20. emonitor The emonitor lights display the relative energy use of your selected cycle and options. They are provided as an energy guide and range from Good (1 light) to Better (5 lights). Some special cycles will not provide a display. 21. Display Displays the approximate time remaining until the end of the cycle. NOTE: The cycle time is affected by how long it takes the washer to fill. This depends on the water pressure in your home. The smart timer learns the amount of time it takes to fill your washer and adjusts the total time accordingly. Load Examples Work Wear Linens Mixed Loads Delicates Speed Wash 4 Jeans 5 Work Wear Shirts 5 Work Wear Pants 2 Bath Sheets 10 Bath Towels/ 12 Washcloths 7 Hand Towels/ 2 Terrycloth Bath Mats OR 2 Flat Queen-Sized Sheets 2 Fitted Queen- Sized Sheets 4 Pillowcases 4 Pillowcases 2 Hand Towels 2 Flat Sheets/ 2 Fitted Sheets 2 Bath Towels/ 4 Washcloths OR 6 Shirts (Men s or Women s) 4 Pair Pants (Khakis or Twills) 5 T-shirts 7 Pairs of Boxers 4 Pairs of Shorts OR 6 T-shirts 4 Pairs of Sweatpants 4 Sweatshirts 2 Hoodies 7 Pairs of Socks 7 Bras 7 Panties 3 Slips 2 Camisoles 4 Nightgowns * Using a nylon mesh bag for small items is recommended. 2 Casual Wear Work Shirts 1 Pair Casual Wear Work Pants OR 3 Soccer Uniforms 19

20 Diagnostics Service Mode The control must be in the idle state (display lit but not in a cycle) to enter Service Mode. Keys are labeled differently on certain models. Press the following key sequence that matches the keys on the model being serviced. Service Mode Entry Models with Ext Rinse key: Press and release the Ext Rinse key, then press and release the Delay Wash key, then press and release the Ext Rinse key, then press and release the Delay Wash key. Models with Rinse key: Press and release the Rinse key, then press and release the Delay Wash key, then press and release the Rinse key, then press and release the Delay Wash key. Navigate Service Mode Rotate the cycle select knob CW to increase the test number. Rotate the cycle select knob CCW to decrease the test number. Press the Start key to enter a test. Turn the cycle select knob to exit the test. Service Mode Exit Press the Power key or disconnect power to unit. Service mode will automatically be exited after 30 minutes of inactivity.

21 Service Mode Tests Test 01 LED & Door Switch Test Press the Start key to begin the test. All LED s on the display will be lit including 8:88 on the seven segment display. Opening the door will cause the LED s and seven segment display to blink while the door is open. This verifies operation of the door switch. Test 02 Model Number Viewing the Model ID Code Press the Start key to begin the test. The model ID code is displayed in the seven segment display. The model ID code may be changed if necessary, follow the instructions below to change the model ID code. Test 03 UI Software Version Changing the Model ID Code The model ID code may be changed by pressing and holding the Spin and Temperature keys for 2 seconds. The current model ID code will start to blink. Press the Soil Level key to increment the model number. Press the Temperature key to decrement the model number. Press and hold the Start key for 3 seconds to store the number in EEPROM and reset the control. If the cycle select knob is rotated before saving the new model ID code, the control will exit this mode. Press the Start key to begin the test. Major software version of the UI software is displayed in the display for 1 second and the Extra Heavy LED is on. Minor software version of the UI software is displayed in the display for 1 second and the Heavy LED is on. The display will continue to toggle between the 2 versions until the user exits the test. Test 04 Hot Water Valve Press the Start key to begin the test. After the door is locked, the hot Water Valve will turn on and an H will be displayed on the seven segment display. At no time during this test will the tub fill past the main level on the pressure sensor. If the water level rises to the main level, the control will turn on the drain pump and drain the tub to empty. Test 05 Test 06 XML Version Check Cold Water Valve Test Press the Start button to begin the test. Major software version of the XML data is displayed in the display for 1 second and the Extra Heavy LED is on. Minor software version of the XML data is displayed in the display for 1 second and the Heavy LED is on. The display will continue to toggle between the 2 versions until the user exits the test. Press the Start key to begin the test. After the door is locked, the cold Water Valve will turn on and C1 will be displayed on the display. Note: At no time during this test will the tub fill past the main level on the pressure sensor. If the water

22 Test 07 MC Software Version Check Press the Start key to begin the test. Major software version of the MC software is displayed in the display for 1 second and the Extra Heavy LED is on. Minor software version of the MC software is displayed in the display for 1 second and the Heavy LED is on. The display will continue to toggle between the 2 versions until the user exits the test. Test 08 Dispenser Test Press the Start key to begin the test. After the door is locked, the dispenser will move to the Pre-wash position and pdt will be displayed on the display. Once the Pre-wash position has been reached the control will turn on the cold water valve. Press the Start key again, and the cold water valve will turn off and the dispenser will move to the detergent position and dtt will be displayed on the display. Once the detergent position has been reached the control will turn on the cold water valve. Press the Start key again, and the cold Water Valve will turn off and the dispenser will move to the softener position and Fdt will be displayed on the display. Once the softener position has been reached the control will turn on the cold water valve. Press the Start key again, and the cold Water Valve will turn off and the dispenser will move to the bleach position and bdt will be displayed on the display. Once the bleach position has been reached the control will turn on the cold water valve. Pressing Start again will restart the test. Test 09 Inverter Software Version Press the Start key to begin the test. Major software version of the inverter software is displayed in the display for 1 second and the Extra Heavy LED is on. Minor software version of the inverter software is displayed in the display for 1 second and the Heavy LED is on. The display will continue to toggle between the 2 versions until the user exits the test. Test 10 Tumble Test Press the Start key to begin the test. After the door is locked, A will be displayed in the display. The tumble test will rotate the basket slowly in both directions. Test 11 Spin Test Press the Start key to begin the test. After the door is locked, S will be displayed in the display. If the water level is above empty at the start of the test, the tub will be drained to empty. The unit will begin spin, and display the spin speed in the display. The spin test will spin the wash basket at 500 RPM, 1000 RPM, 1100 RPM, and 1250 RPM, pressing the Start key advances to the next higher speed. Once a higher speed has been selected, if a lower speed is desired, T 11 must be exited and then re-entered. Note: The seven segment display is only capable of displaying values from To compensate for this, an A is used in the hundreds position to represent 1000, a b is used in the hundreds position to represent 1100, and a C is used in the hundred position to represent Ex. C11 = 1211 RPM.

23 Test 12 Drain Pump Test Press the Start key to begin the test. Drain pump comes on and P1 is displayed in the display. Test 13 Heater Test Press the Start key to begin the test. Water temperature in F is displayed in the display. If water is present at the start of the test, the tub will be drained to empty. Otherwise, the tub will fill to the appropriate water level and the heater will be turned on. Note: If at any time during the test the water level gets too low, the heater will be turned off and the water valve will be turned on until the water level reaches a safe heater operating temperature, then the heater will be turned back on. Test 14 Door Lock Test Press the Start key to begin the test. The door will lock and LC will be displayed in the display. Pressing the Start key again will unlock the door and UL will be displayed in the display. Test 15 Test 16 Out of Balance Test Pressure Sensor Test Press the Start key to begin the test. If water is present at the start of the test, the tub will be drained to empty. Washer spins at 100 RPM and OOB value will be displayed in the displayed will display. Press the Start key to begin the test. If water is present at the start of the test, the tub will be drained to empty. Hot and cold water valves are energized and the pressure sensor frequency is displayed in the display with 1 decimal point of resolution. (i.e.: XX.X Hz. See Pressure Sensor for frequencies.) Note: The control will continue filling until the overflow level is reached, at that time the water valves will be turned off and the drain pump will be energized until the tub is drained to empty. Test 17 Flow Meter Test Press the Start key to begin the test. If water is present at the start of the test, the tub will be drained to empty. Hot and cold water valves are energized and the flow rate in liters/ minute is displayed in the display with 1 decimal point of resolution. (i.e.: XX.X L/M) Note: The control will continue filling until the overflow level is reached, at that time the water valves will be turned off and the drain pump will be energized until the tub is drained to empty. Test 18 UI Critical Software Version Check Press the Start key to begin the test. Major software version of the UI software is displayed in the display for 1 second and the Extra Heavy LED is on. Minor software version of the UI software is displayed in the display for 1 second and the Heavy LED is on. The display will continue to toggle between the 2 versions until the user exits the test.

24 Test 19 Test 20 Mc Critical Software Version Check Inverter Critical Software Version Check Press the Start key to begin the test. Major software version of the MC software is displayed in the display for 1 second and the Extra Heavy LED is on. Minor software version of the MC software is displayed in the display for 1 second and the Heavy LED is on. The display will continue to toggle between the 2 versions until the user exits the test. Press the Start key to begin the test. Major software version of the Inverter software is displayed in the display for 1 second and the Extra Heavy LED is on. Minor software version of the Inverter software is displayed in the display for 1 second and the Heavy LED is on. The display will continue to toggle between the 2 versions until the user exits the test. Test 21 Fault Codes Fault codes are displayed in HEX format. No fault codes will display Press the Start key to begin the test. The first fault code found in the fault code log is displayed in the display. Each press of the Start key will advance to the next fault code. Note: Fault Codes are cleared in Test 22. Test 22 Clear Fault Codes Press the Start key to begin the test. If error codes are present Er will be displayed in the display. If no error codes are present will be displayed in the display. Pressing and holding the Start key for 3 seconds sounds a tone and clears the fault codes from memory. When the fault codes have been cleared, will be displayed in the display. Test 23 Clear EEPROM Press the Start key to begin the test. EE will be displayed in the display. Pressing and holding the Start key for 3 seconds sounds a tone and resets the EEPROM. When the EEPROM has been reset, will be displayed in the display. Note: Clearing the EEPROM will clear all existing fault codes but the model ID code will remain unchanged. Test 24 Slow Ramp Test Press the Start key to begin the test. If water is present at the start of the test, the tub will be drained to empty. After the door is locked the motor will ramp up to 1250 RPM at 2 RPM per second. The spin speed will be displayed in the display. Note; The seven segment display is only capable of displaying values from To compensate for this, an A is used in the hundreds position to represent 1000, a b is used in the hundreds position to represent 1100, and a C is used in the hundred position to represent Ex. C11 = 1211 RPM.

25 Test 25 Test 26 Test 27 Low Flow (Steam) Water Valve Test Recirculation Pump Test Overnight Dry Fan Test Press the Start key to begin the test. After the door locks the low flow water valve is energized and the pressure sensor frequency is displayed in the display with 1 decimal point of resolution. (i.e.: XX.X Hz. See Pressure Sensor for frequencies.) Note: The control will continue filling until the overflow level is reached, at that time the water valves will be turned off and the drain pump will be energized until the tub is drained to empty Press the Start key to begin the test. The door locks and the cold water valve is energized until the main water level is reached, at that time the cold water valve will be de-energized and the recirculation pump will be energized. Note: If the water level falls below the main water level, the recirculation pump will de-energized. Press the Start key to begin the test. The door locks, the overnight dry fan is energized, and onr is displayed in the display. Consumer Mode Consumer mode is a special mode that allows the consumer to see fault codes. Consumer Mode Entry The control must be in the idle state to enter consumer mode. Simultaneously press and hold Power, Soil Level and Temperature for 3 seconds. Consumer Mode Navigation Upon entering consumer fault code mode the control will display the number in HEX format. Fault codes will only be displayed if they are active. Pressing the Start key displays the next fault code in the fault code log. If there are no fault codes in the log, the control will display on the seven segment display. Consumer Mode Exit Press the Power key. The control will return to the idle state 30 minutes after entering consumer fault code mode. Disconnect power from the appliance. 25

26 Fault Codes Fault codes can be viewed in service mode T21. Fault codes can be cleared in service mode T22. Faults 1-9 Fault Code Hex Name Description Repair Action 1 UI EEPROM UI software not operating correctly. 5 Brake Error Basket taking too long to stop spinning. 6 Dispenser Timeout Dispenser does not reach target within 100 seconds. 7 Stuck Key Keys not operating when pressed. Clear the fault code using Service Mode test T23. Verify model ID # using Service Mode test T02. If correct go to next step. If incorrect, set the correct Model ID #. Power cycle and verify model ID#. Power cycle and check fault does not return. If fault comes back, replace UI (User Interface PCB). Clothing load too heavy. Hall Sensor. Diverter motor and wiring. UI Board. Check keys and adjust. Loosen control panel screws. Replace control panel. Replace UI board. 8 Pressure Sensor Not filling as designed. Check frequency (Hz) using multimeter. Check pressure sensor hose. Replace pressure sensor. Replace IMC board. 9 Slow Fill (Pressure Sensor) Slow fill during pressure sensor fill. Check house water supply and proper water pressure. Check for kinked hoses. Check hose and water valve screens. Check frequency (Hz) using multimeter. Check pressure senor wiring and pressure sensor hose.

27 Faults A-11 Fault Code Hex A Name Description Repair Action Slow Fill (Flow Meter) Slow fill during flow meter fill. Check house water supply and proper water pressure. Check for kinked hoses. Check hose and water valve screens. Check flow meter wiring. Replace flow meter. Replace IMC board. B Drain Pump Water remaining it tub. Check drain pump clean out. Check installation instructions for proper standpipe height. Check pressure sensor frequency. C Overflow Condition Water level went above the overflow level on 2 separate occasions. D Inverter Communication Timeout The UI has not received the inverter status message in 10 seconds. E Door Open While the unit was running the door was detected as open. F Door Unlocked While the unit was running the door was detected as unlocked. 10 Max Water Volume More than 13 gallons of water entered tub. Max Water Volume is reset each time the unit drains 11 Door Lock Error Door fails to lock after more than 3 attempts. Check for water valve sticking open. Check pressure sensor frequency. Reset control boards by unplugging the washer for 30 seconds. Check the wiring between the IMC and UI boards. If still no operation, replace IMC (Inverter Machine Control). Ensure proper loading (Unbalanced loads can cause this). Check for door closing properly or warped door. Check door lock and wiring. Ensure proper loading (Unbalanced loads can cause this). Check for door closing properly or warped door. Check door lock and wiring. Check flow meter and flow meter wiring. Check pressure sensor, pressure sensor wiring and pressure sensor hose. Replace pressure sensor. Replace flow meter. Replace IMC board. Check for door closing properly or warped door. Check for broken or deformed door latch. Check door lock and wiring.

28 Faults 12-CB Fault Code Hex 12 Door Unlock Error Door fails to unlock after more than 3 attempts. Name Description Repair Action 13 Flow Meter Error The water volume as read from the flow meter has not increased by 1.0 liters within 10 seconds after the fill has started. 14 Recirculation Pump Error 68 Pressure Sensor Out of Range The frequency of the pressure sensor did not change while the recirculation pump was in operation. Pressure sensor value is > 47 hz or < 35 hz. 6A Thermistor Open Thermistor resistance too high. 6B Thermistor Short Thermistor resistance too low. 70 Target Volume Overflow 72 Inverter Spin Redundancy Target fill volume is greater than the MAX fill volume. IMC detected basket rotation while the door was either unlocked or opened. Check for door closing properly or warped door. Check for broken or deformed door latch. Check door lock and wiring. Check house water supply and proper water pressure. Check for kinked hoses. Check hose and water valve screens. Check flow meter and flow meter wiring. Check drain pump clean out. Check recirculation pump in service mode. Replace pressure sensor. Replace IMC board. Check for open thermistor harness. Check thermistor resistance. Replace thermistor. Replace IMC board. Check for shorted thermistor harness. Check thermistor resistance. Replace thermistor. Replace IMC board. Replace UI board. Check door switch wiring. Replace door lock assembly. Replace IMC board. C9 IMC Fault IMC Fault If fault persists, or unit does not spin, replace IMC board. CA IMC Fault IMC Fault If fault persists, or unit does not spin, replace IMC board. CB DC Bus Brownout DC bus voltage too low. Check AC line voltage is correct. If fault persists, or unit does not spin, replace IMC board.

29 Faults CC-D4 Fault Code Hex CC, CD, CE, CF D0 Name Description Repair Action IMC Fault IMC Fault Reset IMC by unplugging washer for 30 seconds. Attempt to operate Drain and Spin cycle. Enter Service Mode and check that fault has cleared. If fault persists, or unit does not spin, replace IMC (Inverter Machine Control). Basket Strike Basket hit side panel. Unbalanced issue. Detected D1 Phase Current Error Motor phase current exceeds 4.5 amps for more than 5 minutes. Wash load too heavy. Item caught between tubs. D2 Locked Rotor Locked Rotor Check the motor and basket is free to spin. Reset IMC by unplugging washer from 30 seconds. Attempt to operate a Drain and Spin cycle. Enter Service Mode and check that fault has cleared. Check harness and motor connections. If fault persists, or unit does not spin, replace IMC (Inverter Machine Control). D3 Hall Sensor Fault Issue with pulses from the hall sensor. D4 IMC Communication Fault Inverter failed to receive a valid communication for 10 seconds. Reset IMC by unplugging washer from 30 seconds. Attempt to operate a Drain and Spin cycle. Enter Service Mode and check that fault has cleared. If fault persists or unit does not spin, check hall sensor harness and module. If hall sensor and harness check OK, replace IMC (Inverter Machine Control). Reset control boards by unplugging the washer for 30 seconds. Check the wiring between the IMC and UI boards.

30 Faults D5-E8 D5 D6 D7 D8 D9 DA DB DC DD DE DF E0 E1 E2 E3 E4 E5 E6 E7 IMC Fault IMC Fault Reset IMC by unplugging washer for 30 seconds. Attempt to operate Drain and Spin cycle. Enter Service Mode and check that fault has cleared. If fault persists, or unit does not spin, replace IMC (Inverter Machine Control). E8 Motor Over-temp Motor temperature exceeds 180 degrees F. Load too heavy. Item caught between wash basket and outer tub. 30

31 Electronic Board Pin Outs IMC Board J102-1 J204-1 J603-1 J501-1 J J702-1 J701-1 J701-6 J101-4 J803-1 J101-1 IMC J101 pin1 Chassis GND to IMC board IMC J101 pin 2 Neutral supply to IMC board IMC J101 pin 3 Line supply to IMC Board IMC J101 pin 4 Neutral connection to water valves IMC J101 pin 5 Not Used IMC J101 pin 6 Neutral connection to Door Lock, Drain Pump and Recirculation Pump IMC J803 pin 1 Not Used IMC J803 pin 2 Not Used IMC J803 pin 3 Switched line voltage to Heater IMC J701 pin 1 Door Lock Switch position input to IMC board IMC J701 pin 2 Not Used IMC J701 pin 3 Switched line voltage to Recirculation Pump IMC J701 pin 4 Switched line voltage to Drain Pump IMC J701 pin 5 Switched line voltage to Door Lock solenoid IMC J701 pin 6 Switched line voltage to Diverter Motor

32 IMC J702 pin 1 - Switched line voltage to Hot Valve IMC J702 pin 2 - Switched line voltage to Cold Valve IMC J702 pin 3 - Switched line voltage to Steam Valve IMC J702 pin 4 - Not Used IMC J702 pin 5 - Not Used IMC J702 pin 6 - Not Used IMC J501 pin 1 DC GND to Thermistor IMC J501 pin 2 DC GND to Pressure Sensor IMC J501 pin 3 DC GND to Diverter Position Switch IMC J501 pin 4 Not Used IMC J501 pin 5 Not Used IMC J501 pin 6 Diverter Position Switch input to IMC board IMC J501 pin 7 Thermistor input to IMC board IMC J501 pin 8 Not Used IMC J501 pin 9 Not Used IMC J501 pin 10 Presasure Sensor input to IMC board IMC J501 pin 11 Flow Meter input to IMC board IMC J501 pin 12 5 VDC supply to Pressure Sensor IMC J501 pin VDC supply to Flow Meter IMC J603 pin 1 DC GND to UI board IMC J603 pin 2 Comm Line IMC J603 pin VDC supply to UI board IMC J603 pin 4 12 VDC supply to UI board IMC J204 pin 1 DC GND to Tub Lamp IMC J204 pin 2 DC Supply to Tub Lamp IMC J102 pin 1 DC GND to Overnight Dry Fan IMC J102 pin 2 DC Supply to Overnight Dry Fan IMC J1203A pin 1 GND (Motor cable shield) IMC J1203A pin 2 Stator Voltage (phase 3) IMC J1203A pin 3 Stator Voltage (phase 2) IMC J1203A pin 4 Stator Voltage (phase 1) IMC J1001 pin 1 DC GND IMC J1001 pin 2 Hall Sensor 3 IMC J1001 pin 3 Hall Sensor 2 IMC J1001 pin 4 Hall Sensor 1 IMC J1001 pin 5 16 VDC IMC J1001 pin 6 Not Used 32

33 UI Board Pin Out J201-1 UI J201 pin VDC from IMC board UI J201 pin 2 - Comm Line UI J201 pin VDC from IMC board UI J201 pin 4 - Not Used UI J201 pin 5 - DC GND from IMC board UI J201 pin 6 - DC GND to RJ45 board UI J201 pin 7 - Comm Line UI J201 pin VDC to RJ45 board RJ45 Board J

34 Front View Component Locator Views Top Panel Location UI Board Location Control Panel Assembly Location Tub Lamp Location Door Lock Assembly Location Front Panel Location Drain Clean Out Cover Location Riser Location 34

35 Top View Overnight Dry Fan Location RJ45 Board Location Water Valve Assembly Location Vent Tube Location IMC Board Location Diverter Motor Assembly Location Pressure Sensor Location Dispenser Assembly Location Top Counterweight Location 35

36 Rear View RJ45 Connection Location Vent Location Main Fill Hose Location Rotor Location Stator Location Under Rotor Hall Sensor Location Under Stator Heater Location Thermistor Location Thermistor Connector 36

37 Tub and Basket Exploded View ONR Spray Nozzle Location O-Ring Seal Location Rear Tub Location Rear Balance Ring Location ONR Hose Location Top Counterweight Location Inner Tub Location Overnight Dry Filter Location Baffle Location Gasket Nozzle Location Front Balance Ring Location Front Tub Location Rear Gasket Clamp Bottom Counterweight Door Exploded View Door Cover Location Door Glass Location Door Striker Location Door Cover Protect Location Door Frame Location Door Hinge Location Door Hinge Cover Location Front Gasket Clamp Location Tub Gasket Location 37

38 Tub and Structure Door Assembly Front Panel Slot Door Cover Holding Screw Handle Door Glass Striker Door Frame Door Frame The door is available as a complete assembly or components may be replaced separately. See Door Exploded View on pag e 37. Note: The door cover protect (not shown in the image above) is not a part of the door assembly. Door Assembly Removal 1. Remove the two T25 Torx door mounting screws. Location: See Door Frame Location on page 37. Door Frame Removal 1. Remove the door assembly and set it on a flat working surface. (See Door Assembly Removal) 2. Remove the two #2 Phillips screws that hold the door striker and remove the door striker. 3. Remove the nine #2 Phillips screws that hold the inner door panel and lift the inner door panel to remove. 2. Lift door up slightly to disengage the door assembly holding screw from the front panel slot, then pull door assembly forward. 38

39 #2 Phillips #2 Phillips Door Hinge Hinge Bushing #2 Phillips #2 Phillips #2 Phillips #2 Phillips #2 Phillips Support Screw Hinge Bushing Hinge Bushing #2 Phillips #2 Phillips Hinge Bushing #2 Phillips #2 Phillips Location: See Door Hinge Location on page 37. Door Glass Locator Door Hinge Removal 1. Remove the door assembly. (See Door Assembly Removal) 2. Remove the door frame. (See Door Frame Removal) 3. Remove the eight hinge plate screws and set plate aside. Locator Locator Door Glass Location: See Door Glass Location on page 37. Door Glass Removal 1. Remove the door assembly. (See Door Assembly Removal) 2. Remove the door frame. (See Door Frame Removal) 3. Lift Door glass to remove. Note: When reinstalling the door, use locators shown above to properly align the door. 4. Remove hinge. Note: When reinstalling the door hinge, ensure the hinge bushing are in place. 39

40 Door Handle Door Cover Location: See Door Handle Location on page 37. Door Handle Removal 1. Remove the door assembly. (See Door Assembly Removal) 2. Remove the door frame. (See Door Frame Removal) 3. Lift the door glass to remove. 4. Remove the two 1/4 hex door handle screws (if present). 5. The handle has 5 clips (shown below) to help securely hold the handle. Push the handle toward the outside of the door frame while working the clips through the frame. Location: See Door Cover Location on page 37. Door Cover Removal 1. Remove the door assembly. (See Door Assembly Removal) 2. Remove the door frame. (See Door Frame Removal) 3. Lift the door glass to remove. 4. Remove the door handle. (See Door Handle Removal) 5. Remove the door cover protect. (See Door Cover Protect Removal) Door Cover Protect Clip (If Present) Clip Clip Clip (If Present) Clip Location: See Door Cover Protect on page

41 Door Cover Protect Removal 1. Remove the door assembly. (See Door Assembly Removal) 2. Remove the door frame. (See Door Frame Removal) 3. Lift the door glass to remove. 4. Unsnap the twelve snaps to remove the door cover protect. To Neutral Door Lock Assembly Strip Circuit IMC J701-6 IMC J101-2 Diverter Motor D Clip Clip Clip Locking and Unlocking Neutral is switched to the door lock assembly by the door switch. L1 is pulsed to the other side of the solenoid from IMC J701-5 when the door is locked or unlocked. Door Lock Assembly Door Position Detection When the door switch is closed, neutral is present at IMC J701-5 indicating that the door is closed. When the door switch is open, neutral is not present at IMC J701-5 indicating that the door is open. Door Switch Pin 3 Pin 1 Pin 2 Manual Unlock Lock Position Sensing When the door is locked the lock switch will be closed, causing neutral to be present at IMC J701-1 indicating that the door is locked. When the door is not locked the lock switch will be open and neutral will not be present at IMC J701-1 indicating the door is not locked. Solenoid Operating Voltage: 120 VAC Solenoid Resistance: 50 Ω Location: See Door Lock Assembly Location on page 34. The door lock assembly mechanically locks and unlocks the door, and gives door switch and door lock status to the IMC board. Each time the solenoid is operated the position of the mechanical lock and the door lock switch changes position. The door can be manually unlocked by pressing down on the manual unlock lever (See Image Above). Door Lock Assembly Tests 1. Enter Service Mode. 2. Run Test 14. a. Press the Start button to begin the test. b. The door will lock and the LC will be displayed in the display. c. Pressing the Start button again will unlock the door and UL will be displayed in the display. Door Lock Assembly Diagnostics Solenoid Not Operating 1. Disconnect power to unit. 2. Disconnect IMC J701. While holding the door switch in, check resistance between IMC J701-5 and IMC J a. If resistance is greater than 15Ω, check wiring and replace door lock assembly if wiring is ok. b. If resistance is ~15Ω replace IMC board. 41

42 Door Lock Assembly Removal 1. Disconnect power to the unit. 2. Remove the front gasket clamp. (See Tub Gasket Removal) 3. Remove the two T-25 door lock mounting screws. 4. Pull the door lock assembly out through the opening. 2. Remove the tub lamp if present. (See Tub Lamp Removal) 3. Remove the glass clean hose and recirculation hose if present. Alignment Arrow Tub Gasket Glass Clean Hose Recirc Hose Tub Lamp Tub Lamp Entry Glass Clean & Recirc Entry 4. Loosen the 1/4 gasket clamp screw until the tub gasket can be pulled off. Drain Holes Location: See Tub Gasket Location on page 37. The tub gasket is referenced as Main Gasket in IPC. There are two different tub gaskets, one gasket is used on models with tub lamps and another is used on models without tub lamps. There are five drain holes located at the bottom of the gasket that allows water trapped in the gasket to drain back into the tub. When reinstalling the gasket these holes must line up with the holes in the front tub. Tub Gasket Removal 1. Disconnect power to unit. Using a flat blade screw driver or needle nose pliers, remove the front gasket clamp as shown below. 5. Grasp the front edge of the gasket and pull it forward to remove. Tub Gasket Reinstallation 1. Align the drain holes at the bottom of the door gasket with the drain holes in the front tub. 42

43 2. Starting at the bottom, attach the inside gasket lip to the front tub inside lip. 3. Ensure gasket drain holes remain aligned with the front tub drain holes. 4. Attach the outside gasket clamp lip to the outside lip of the front tub. 5. Reinstall the inside gasket clamp with the head of the clamp adjustment screw pointed up and positioned at approximately the 3 o clock position. 6. Tighten the inside clamp snugly, do not deform the clamp by over tightening. 7. Reinstall tub lamp and hoses. 8. Attach the front panel gasket lip to the front panel lip and reinstall clamp. 9. Check for water leaks. Tub Lamp 3.1 VDC DC GND Tub Lamp Strip Circuit L IMC J702-1 IMC J101-4 Tub Lamp Diagnostics 1. Press the Light button to energize the lamp. 2. Check for 3.1 VDC between IMC J204 pins 1 & 2. If 3.1 VDC is present replace the tub lamp If 3.1 VDC is not present replace the IMC board. Tub Lamp Removal 1. Disconnect power to the unit. 2. Remove the front clamp of the tub gasket and pull the gasket down to access the tub lamp. (See Tub Gasket Removal) 3. Carefully pull the tub lamp out of the top of the tub gasket. Note: When reinstalling the tub lamp, ensure the tub lamp bottoms out in the gasket. Control Panel Control Panel Components 5/16 Hex UI Board #2 Phillips Operating Voltage: 3.1 VDC Resistance: N/A Location: See Tub Lamp Location on page 34. Knob #2 Phillips T-20 Torx Button Trees The tub lamp is an LED light. It is energized as soon as the door is opened or when the Light button is pressed. The lamp fades in intensity from on to off or off to on, transition time is approximately 1 second. A software timer limits the on time of the lamp to a maximum of 5 minutes. Pressing the Light button will reenergize the lamp and restart the 5 timer. Note: Tub lamp leads cannot be removed from the lamp. The lamp harness is part of the tub lamp. Knob Retainer Control Panel Location: See Control Panel Location on page 34. The control panel is a plastic housing with graphics. The button trees, knob, knob retainer and UI board must be obtained separately. 43

44 Control Panel Removal 1. Remove the cycle select knob by pulling it forward. 2. Remove the knob retainer by pulling it forward. 3. Remove the dispenser drawer by pulling drawer outward while pressing down on the drawer release. Drawer Release 6. Disconnect the UI wire harness and cut the UI wire tie. Note: Install a new UI wire tie when reassembling. UI Board 4. Remove the one T-20 and two #2 Phillips control panel screws. Operating Voltage 1: +12 VDC Operating Voltage 2: +7.5 VDC COMM Voltage: Pulsating DC Location: See UI Board Location on page 34. #2 Phillips #2 Phillips T-20 The UI (User Interface) board provides a means of communication between the washer and the consumer. The UI board contains software algorithms that control the washer. 5. Pull the left side of the control panel slightly forward (as shown below) and lift the left side up first, then lift the right side up to remove. When the UI board is replaced, a new model ID number has to be programmed. Once the UI board has been replaced, it may sometimes power up with all of the UI LED s blinking. If this is the case, follow the steps below. If this is not the case, set the model ID in service mode Test Simultaneously press and hold the Temp and Spin buttons for 3 seconds. 2. Press the Soil button to increase or press the Temp button to decrease the model ID selection until the correct model ID number is displayed per the table on next page.

45 Appliance Model Number Model ID # GFWR4800F / GFWR4805F 3 GFWS3600F / GFWS3605F 2 GHWS2600F / GHWS2605F 1 GFWS2500F / GFWS2505F 0 GFWS3700F / GFWS3705F 5 5/16 Hex 5/16 Hex 5/16 Hex 5/16 Hex 5/16 Hex 5/16 Hex UI Board Strip Circuit 4. Remove the UI board. L1 N IMC J101-3 IMC J101-2 IMC J603-4 IMC J603-3 IMC J603-2 IMC J VDC +7.5 VDC COMM DC GND Button Tree UI J201-5 UI J201-2 UI J201-3 Tree (B) Tree (C) UI J201-1 Tree (A) UI Board Tests Run Test 01 for LED operation. Run Test 02 for viewing and changing model ID code. Run Test 03 for UI software version. Run Test 18 for UI Critical Software Version. UI Board Diagnostics 1. Check for 120 VAC at IMC J101 pins 2 & 3. a. If 120 VAC is present go to step 2. b. If 120 VAC is not present check house supply voltage. 2. Check for 12 VDC between IMC J603 pins 1 & 4 and 7.5 VDC between IMC J603 pins 1 & 3. a. If either voltage is not present replace the IMC board. b. If both voltages are present go to step Check for 12 VDC between UI J201 pins 1 & 5 and 7.5 VDC between UI J201 pins 3 & 5. a. If either voltage is not present, check wiring between the UI board and the IMC board. b. If both voltages are present, replace the UI board. Tree (F) Tree (E) Button trees are used to press the micro switches on the UI board and to provide a light path between the LED s on the UI board and the control panel. Five button trees are used. Button Tree Removal 1. Remove the control panel. (See Control Panel Removal) 2. Remove the UI board. (See UI Board Removal) 3. Remove button trees: Button Tree (A) 1. Push the button tree to disengage the front clips. 2. Pivot button tree up to disengage the rear clips. Tree (D) UI Board Removal 1. Disconnect power to the unit. 2. Remove the control panel. (See Control Panel Removal) 3. Remove the six 5/16 hex UI screws. 45

46 Front Clip Rear Clip Button Tree (D) Lift button tree to remove, no clips used. Front Clip Rear Clip Front Clip Button Tree (D) Button Tree (B) 1. Remove button tree (C). 2. Disengage the three clips and lift button tree out. Button Tree (E) Push the button tree toward the bottom of the control to disengage the clips, then lift button tree up. Clip Clip Clip Clip Clip Button Tree (C) Lift up the outside of the button tree, then pivot it up until it disengages the inside clips. Button Tree (F) Lift clips to remove. Clip Clip Inside Clip Outside Inside Clip 46

47 IMC Board IMC Board Removal 1. Disconnect power to the unit. 2. Remove the control panel. (See Control Panel Removal) 3. Remove the top panel. (See Top Panel Removal) 4. Remove the three 1/4 IMC screws. Operating Voltage: 120 VAC Location: See IMC Board Location on page 35. The IMC board is two electronic systems in one board. One part of the IMC board converts 120 VAC into high voltage three phase DC to drive the motor. The other part of the board converts 120 VAC to lower voltage DC voltages that are used by other components in the washer. The IMC also contains relays that operate the various other loads. IMC Board Tests Enter Service Mode. Run Test 07 for MC Software Version. Run Test 09 for Inverter Software Version. Run Test 19 for MC Critical Software Version. Run Test 20 for Inverter Critical Software Version. IMC Board Diagnostics 1. Check for 120 VAC at IMC J101 pins 2 & 3. a. If 120 VAC is present, go to step 2. b. If 120 VAC is not present, check house supply voltage. 2. Check for 12 VDC between IMC J603 pins 1 & 4 and 7.5 VDC at IMC J603 pins 1 & 3. a. If both voltages are present, go to step 3. b. If either voltage is not present, replace IMC board. 3. Check for pulsating DC voltage between IMC J603 pins 1 & 2. a. If pulsating DC voltage is present, IMC board is ok. b. If pulsating DC voltage is not present, replace IMC board. 5. Slide the IMC board slightly away from the side panel to disengage the IMC board mounting studs. Mounting studs are shown below. Stud Stud Rear View 6. Remove the pressure sensor hose from the pressure sensor and from the IMC channel. 47

48 Pressure Sensor L1 RJ45 Board Strip Circuit IMC Board IMC J101-3 IMC J103-4 IMC J103-3 Pressure Sensor Hose N IMC J101-2 IMC J103-2 IMC J Disconnect IMC wire harnesses and remove IMC board. RJ45 Board +12 VDC COMM DC GND RJ45 J203-1 RJ45 J203-2 RJ45 J203-3 UI J201-8 UI J201-7 UI J201-6 UI Board UI J201-5 UI J201-2 UI J201-3 UI J VDC +7.5 VDC COMM DC GND RJ45 Board Removal 1. Disconnect power to the unit. 2. Remove the control panel. (See Control Panel Removal) 3. Remove the top panel. (See Top Panel Removal) 4. Disconnect the RJ45 wire harness. 5. Remove the RJ45 board mounting screw. Operating Voltage: 12 VDC & 7.5 VDC Location: See RJ45 Board Location on page 35. The RJ45 is used to interface the washer control board to other types of computer systems. The RJ45 board requires +12 VDC, +7.5 VDC, COMM and DC GND to operate. These voltages are generated on the IMC board and supplied to the RJ45 board through the UI board. 48

49 Top Panel Front Panel Hinge Stiffener Bracket Location: See Top Panel Location on page 34. Front Panel Top Panel Removal 1. Remove the control panel. (See Control Panel Removal) 2. Remove the four 1/4 hex head top panel screws. Location: See Front Panel Location on page 34. 1/4 Hex 3. Pull top panel forward slightly and lift up to remove. 1/4 Hex 1/4 Hex 1/4 Hex Front Panel Removal 1. Remove the control panel. (See Control Panel Removal) 2. To Reduce weight, remove the door assembly. (See Door Assembly Removal) 3. Remove the door lock assembly. (See Door Lock Removal) 4. Remove the tub gasket from the front panel. (See Tub Gasket Removal) 5. Remove the two 1/4 hex pump enclosure screws and remove the pump enclosure If the washer is on a riser, remove the riser front panel. (See Riser Removal)

50 7. Remove the three 1/4 hex head screws on the bottom of the front panel. Rear Panel 14 Hex 14 Hex 14 Hex 8. Remove the four 1/4 hex head screws on the top of the front panel. 9. Lift the front panel slightly upward and pull forward to remove. Rear Panel Removal 1. Disconnect power and water supply to unit. 2. Remove the nineteen 1/4 hex head rear panel screws and remove the rear panel. Leveling Leg Jamb Nut Leveling Leg 50 When adjusting or reinstalling the leveling legs, make sure the jamb nuts are tightened to prevent vibration.

51 Riser 9/16 Hex 9/16 Hex 9/16 Hex 9/16 Hex Location: See Riser Location on page 34. The riser is an integrated part of the washing machine and cannot be permanently removed. The purpose of the riser is to add an additional 7 inches of height to the washer. Riser Removal 1. Disconnect power and water supply to unit. Move washer to an area that allows room to access the front and back side of the washer. 2. Remove control panel. (See Control Panel Removal) 3. Remove front panel. (See Front Panel Removal) 4. Remove rear panel. (See Rear Panel Removal) 5. Lay unit on its side and remove the four riser mounting bolts. Front Tub Overnight Dry Filter O-RIng Seal Front Tub Location: See Front Tub Location on page The front tub is mated to the rear tub with sixteen 3/8 hex head screws. An O-ring seal shown above (not part of the front tub) is placed between the two tubs to prevent water leaks. On models that have the overnight dry feature, an air filter is housed inside the overnight dry hose collar as show above. Front Tub Removal 1. Disconnect power to the unit. 2. Remove the control panel. (See Control Panel) 3. Remove the top panel. (See Top Panel)

52 4. Remove the front panel. (See Front Panel) 5. Remove wire tie (A) and cut the two wires ties (B) from the top brace. 6. Remove the two 1/4 top brace screws and set the top brace aside. 9. Pull the glass clean hose and recirculation hose (if present) out of the wire ties on the front brace and set front brace aside. Wire Tie A Recirculation Pump Hose Glass Clean Hose Wire Tie B 10. Remove the counterweights. 11. Remove the dispenser assembly. (See Dispenser Assembly) 12. Remove the top damper pins from both front dampers and tilt dampers toward the side panels. 7. Remove the glass clean hose, recirculation pump hose (if present) and tub lamp (if present). LF Damper RF Damper Glass Clean Hose Tub Lamp Recirc Pump Hose 13. Remove the sixteen 3/8 hex head tub bolts and carefully remove the front tub out through the front of the cabinet. 14. If replacing the front tub, remove the tub gasket. (See Tub Gasket Removal) 8. Remove the nine 1/4 hex head front brace screws and the 7/16 hex head control panel stud. Note: When reinstalling the front tub, ensure the O-Ring is in place. When reinstalling bolts, do not fully tighten tub bolts until all bolts are snugly in place, then tighten tub bolts in a cross pattern to ensure front tub pulls up evenly against the rear tub. 7/16 Hex 52

53 Inner Tub Balance rings contain food grade silicone and several steel ball bearings that counteract unbalanced loads by shifting the liquid and ball bearings to the opposite side of the unbalance weight. Front Balance Ring Basket Tub Baffle Rear Balance Ring Location: See Inner Tub Location on page 37. The basket and trunnion assembly consists of the wash basket and trunnion only. The front balance ring, rear balance ring and baffles are not a part of the assembly. If a balance ring has leaked, an oily residue can be felt on the wash basket and clothing. Silicone residue can be removed by cleaning with soap and water and running the basket clean cycle. The washer will also make a loud rattling noise and have excessive vibration in spin. It is unlikely that high speed spin can be achieved with a damaged balance ring. The balance rings are semi-transparent which allows the liquid level to verified as shown below. Liquid Level Inner Tub Removal 1. Remove the front tub. ( See Front Tub Removal) 2. Remove the Rear Panel. (See Rear Panel Removal) 3. Remove the rotor. (See Rotor Removal) 4. Pull the inner tub out through the front of washer. Balance Ring It is normal for the tub assembly to move around quite a bit until the ball bearings have become correctly positioned, especially between rpm. Once the ball bearings are in position the tub assembly movement will lessen greatly. Balance Ring Removal The inner tub must be removed in order to replace the rear balance ring. (See Inner Tub Removal) The front balance ring can be replaced by removing the front tub only. (See Front Tub Removal.) Location: See Front Balance Ring Location and See Rear Balance Ring Location on page 37. To remove the balance ring from the basket and trunnion assembly, remove the six T 20 Torx screws that hold the balance ring in place and pull the balance ring out. 53

54 Baffle 5/16 Hex Clamp Screw Screw Goes Here Clip Clip Clip Clip Clip Clip Location: See Baffle Location on page 37. Baffles are secured to the inner tub with locking clips and a single stainless steel #2 Phillips head screw. The baffle screw can be accessed without removing the inner tub by going through the outer tub at the overnight dry collar. Outer Tub Collar Collar 5. For overnight dry models, remove the overnight dry filter from the collar. 6. For non-overnight dry models, follow instructions in the Baffle Replacement Kit to access the baffle screw. 7. Rotate the wash basket to line up the baffle screw and tub tab with the tub collar as shown below. 8. Remove the # 2 Phillips head baffle screw. 9. Using a float blade screwdriver, bend the tub tab up. 10. Slide the baffle toward the rear to disengage the baffle clips, then pull baffle away from wash basket to remove. On models with the Overnight Dry Feature, the baffle screw can be accessed by removing the overnight dry hose. Baffle Clip Baffle Clip On models without the Overnight Dry Feature the Baffle Replacement Kit WH49X20172 can be used. The kit includes a template and drill bit to drill an access hole through the outer tub. A rubber cap and hose clamp are used to seal off the tub collar after the repair is completed. Remove #2 Phillips Screw Bend Tub Tab Up Baffle Removal 1. Disconnect power to unit. 2. Remove the control panel. (See Control Panel Removal) 3. Remove the top panel. (See Top Panel Removal) 4. For overnight dry models, loosen the 5/16 overnight dry hose clamp and remove the hose. Note: When baffle is reinstalled on non-overnight dry models, ensure the rubber collar cover and clamp is installed. 54

55 Rear Tub Heater Connections Thermistor Harness O-Ring Seal Rear Bearing Rear Tub 11. Remove the four 1/4 bottom rear brace screws and set the bottom rear brace aside. Sump Collar Location: See Rear Tub Location on page 37. The rear bearing is molded into the rear tub and cannot be replaced separately. The O-Ring seal is not part of the rear tub, and it is not necessary to replace the O-Ring when rejoining the two tubs unless the seal is damaged. No lubrication is required for the O-Ring. Rear Tub Removal 1. Disconnect power to unit. 2. Remove the front tub. (See Front Tub Removal) 3. Remove the IMC board. (See IMC Board Removal) 4. Remove the dispenser assembly (See Dispenser Assembly) 5. Remove the inner tub. (See Inner Tub Removal) 6. Remove the back cover. (See Back Cover Removal) 7. Remove the rotor. (See Rotor Removal) 8. Remove the stator. (See Stator Removal) 9. Remove the hall sensor. (See Hall Sensor Removal) 10. Remove the heater and thermistor wire harnesses. 12. Remove the pressure sensor hose and the air chamber hose from the air chamber. 13. Remove the two 1/4 hex air chamber screws and remove the air chamber. Pressure Sensor Hose Air Chamber Hose 14. Remove the rear upper damper pins. 15. Unhook both rear springs from the rear tub and remove rear tub. 55

56 Drive System Rotor Note: The rotor is hard to remove because of the interaction of the rotor magnets with the stator, rock the rotor back and forth while pulling it forward. Stator Phase 2 Phase 1 Phase 3 Location: See Rotor Location on page 36. The rotor is the mechanical portion of the motor system that applies rotational force to the wash basket. A series of magnets around the perimeter of the rotor interact with the electromagnetic field created by current flow through the stator windings. This interaction causes a pushing and pulling effect on the rotor, causing the rotor to rotate. Rotors are inherently reliable components. Most issues will be related to cracked or missing magnets, a cracked housing or out of roundness. These issues will likely not affect washer performance but will create noisy operation. Inspect magnets and housing and verify rotor is not out of round. Operating Voltage: 3 Phase DC Resistance: 16.6 Ω phase-phase Location: See Rotor Location on page 36. The stator is wound in such a way as to produce three changing electromagnetic fields that interact with the magnets of the rotor to produce rotational force. The electromagnetic fields are created by passing current through the phase wires. Each current is phased so that its electromagnetic field is opposite polarity of the rotor magnets. Rotor Removal 1. Disconnect power to the unit. 2. Remove the rear panel. (See Rear Panel Removal) 3. Remove the 1/2 standard thread rotor bolt and pull rotor forward. 56

57 1/2 Hex L1 N IMC J101-3 IMC J101-2 Stator Strip Circuit IMC J1203A - 4 IMC J1203A - 3 IMC J1203A - 2 IMC J1203A - 1 1/2 Hex /2 Hex Stator Diagnostics Stator voltage cannot be tested. If there are any problems detected with the stator, the inverter will stop supplying voltage to it. Do the following to test the stator. 1. Verify the phase wires are properly connected to the stator. 2. Check stator resistance by disconnecting IMC J1203A and connect the meter lead between each phase wire. Resistance should be ~ 16.6 Ω. 5. Tilt the stator and rest it on the brace as shown below. Stator Removal 1. Disconnect power to the unit. 2. Remove the rear panel. (See Rear Panel Removal) 3. Remove the 1/2 standard thread rotor nut and pull the rotor forward. Note: The rotor is hard to remove because of the interaction of the rotor magnets with the stator, rock the rotor back and forth while pulling forward to remove. 4. Remove the three 1/2 hex stator bolts. 6. Remove the hall sensor. (See Hall Sensor Removal) 7. Disconnect the three pin wire connector. Note: When reinstalling this connector, make sure the connector pins engage properly with the stator and push the connector until it is fully seated. 57

58 Hall Sensor Harness Connector 3. Press the Start key. 4. Press and hold the door switch and wait for 000 to appear in the display. 5. Rotate the wash basket by hand in either direction. As the basket spins, the RPM value will be displayed in the display. Front Clip Hall A Rear Clip Operating Voltage: 16 VDC Resistance: N/A Location: See Hall Sensor Location on page 36. The hall sensor assembly is used to measure rotor RPM. Three hall sensors are used to provide better resolution. The hall sensor assembly snaps onto the stator and is oriented so that the hall sensors are in very close proximity to the rotor magnets. A hall sensor is a transducer that varies its output voltage in response to a magnetic field. Voltage output is changed in the hall sensor each time a rotor magnet passes by. This changing voltage is detected by the IMC board and is used to determine rotor speed. Hall B Hall C Front Clip Hall Sensor Diagnostics 1. Verify hall senor mounting. The hall sensor may have become unclipped. 2. Check wiring between hall sensor assembly and IMC board. 3. If hall sensor mounting and wiring are good, replace the hall sensor. Hall Sensor Removal 1. Disconnect power to the unit. 2. Remove the rear panel. (See Rear Panel Removal) 3. Remove the rotor. (See Rotor Removal) 4. Remove the stator. (See Stator Removal) 5. Disconnect the hall sensor harness and unclip the front hall sensor clips first then unclip the rear clip. Hall Sensor Hall Sensor Strip Circuit IMC J L1 N IMC J101-3 IMC J101-2 IMC J IMC J IMC J IMC J Hall Sensor Tests 1. Remove the door striker and insert it into the door lock assembly. 2. Enter service mode and select Test

59 Fill System Water Valve Assembly Water Valve Strip Circuit H IMC J702-1 Switched L1 Cold Solenoid Switched L1 IMC J702-3 S Steam Solenoid Switched L1 IMC J702-2 C Hot Solenoid To Neutral IMC J101-4 Water Valve Tests Enter service mode. Run Test 04 for the hot water valve. Run Test 25 for the steam water valve. Run Test 06 for the cold water valve. Flow Meter Operating Voltage: 120 VAC Resistance: 1 kω each valve Location: See Water Valve Assembly Location on page 35. Water Valve Removal 1. Disconnect power and water supply to unit. 2. Remove the control panel. (See Control Panel Removal) 3. Remove the top panel. (See Top Panel Removal) 4. Disconnect the water valve wire harnesses. 5. Remove the 1/4 hex head water valve screw. The steam valve part of the water valve assembly is a low flow water valve used during steam cycles. Steam is created by heating a small amount of water in the sump. The flow meter is built into the water valve assembly and cannot be replaced separately. It is used to monitor fill rate and keep a cumulative count of the amount of water that has entered the washer. The flow meter consists of a hall senor and water paddle that has 2 embedded magnets. Water flow causes the paddle to rotate. As the paddle rotates, the magnets of the paddle interact with the hall senor which generates a pulse train to the IMC board. 6. Slide water valve assembly slightly to the left and pull it toward the inside of the washer to remove. 59

60 Tan Brown Pressure Sensor Mounting Clip Grey Hose Connection Water Level Name Pressure Sensor Chart Amount of water in basket Frequency Empty N/A Hz Steam Reset Hz Steam Set Hz Foam Reset Hz Foam Set Hz Main Reset Hz Main Set Hz Door Drain Reset Hz Door Drain Set Hz Overflow Set Hz Operating Voltage: 5 VDC Output Frequency: Hz (Empty) Hz (Overflow) Location: See Pressure Sensor Location on page 35. The pressure sensor is an electronic oscillator that changes its output frequency according to the air pressure present on its diaphragm. Air pressure is delivered to the pressure sensor through the pressure sensor hose which also connects to the air dome. The air dome is designed to build air pressure as water fills the tub. Pressure sensor frequency can be read between pins 1 and 2 of the pressure sensor. The pressure sensor requires a 5 VDC between pin 2 (brown) and pin 3 (tan) to operate. The output is taken between pin 1 (brown) and pin 2 (grey). 5 VDC Output GND Pressure Sensor Strip Circuit IMC J IMC J IMC J501-2 Pressure Sensor 5 VDC Output GND Pressure Sensor Strip Circuit Pressure Sensor IMC J IMC J IMC J501-2 Pressure Sensor Tests Enter service mode. Run Test 16 and verify displayed frequency with table with water levels in the table above. Pressure Sensor Removal 1. Disconnect power to the unit. 2. Remove the control panel. (See Control Panel Removal) 3. Remove the IMC board. (See IMC Board Removal) 4. Disconnect the pressure sensor harness and unclip the pressure sensor from the IMC board. 60

61 Heater Tests 1. Enter service mode. 2. Run Test Verify heater operation by watching the thermistor temperature on the display. Heater Bracket Hose Connection Heater Heater Shield Operating Voltage: 120 VAC Resistance: 14.6 Ω Current: 8.2 Amps Watts: 986 Location: See Pressure Sensor Location on page 35. Heater The heater is used on the Allergen and Sanitize cycles or any cycle that allows Add Steam. Add steam is a cycle modifier that causes the washer to produce steam and tumble for approximately 20 minutes at the beginning of the cycle. Once the steam cycle has completed, the normal wash cycle begins. Heater Diagnostics 1. Operate the heater in service mode. 2. Check current draw on the wire connected to IMC J803 pin 2 (navy with white tracer). a. If current draw is ~ 8 amps heater is operating properly. b. If current draw is 0 amps go to step Check for 12 VAC between IMC J802 pin3 and IMC J101 pin 2. a. If 120 VAC is not present replace the IMC board. b. If 120 VAC is present go to step Check for 120 VAC at the heater. a. If 120 VAC is present replace the heater. b. If 120 VAC is not present check wiring to heater. Heater Removal 1. Disconnect power to the unit. 2. Remove the rear panel. (See Rear Panel Removal) 3. Disconnect the heater wires. 4. Remove the 10 mm heater nut. 5. Pull the heater out to remove. Switched L1 Heater Strip Circuit IMC J803-3 Heater 8 mm Nut Heater Connections Door Lock Pin 2 To Neutral IMC J501-2 Door Lock Pin 1 61

62 Thermistor Dispenser Assembly Flow Restricter O-Ring Operating Voltage: 5 VDC Resistance: See Chart Below Location: See Thermistor Location on page 36. Thermistor Chart 36.5 k 32 F 14.7 k 68 F 12.0 k 77 F 9.8 k 86 F 8.0 k 95 F 6.6 k 104 F.5 k 257 F Location: See Dispenser Assembly Location on page 35. The dispenser assembly is used to dispense detergent, bleach and fabric softener into the wash load. Additives are placed in the detergent dispenser drawer (shown below) where they will be flushed into the wash at the appropriate time. Thermistor Tests 1. Enter service mode. 2. Run Test Verify temperature change while the heater is on. Thermistor Removal 1. Disconnect power to the unit. 2. Remove the rear cover. (See Rear Cover Removal). 3. Disconnect the thermistor harness. 4. Remove thermistor. Note: When reinstalling the thermistor ensure the thermistor O-Ring is in place. Water is routed to the dispenser assembly any time a water valve is energized. A water diverter is used to direct the incoming water to one of four compartments as shown below. Fabric Softener Bleach Diverter Pre-wash Main Wash 62

63 Dispenser Assembly Tests 1. Enter service mode. 2. Run Test Verify diverter moves to each position, see diagram below. 7. Using a large flat blade screwdriver, pry the vent tube off the dispenser body. Pre-wash Main Wash Bleach Fabric Softener Dispenser Assembly Diagnostics See Diverter Motor Assembly Diagnostics. Dispenser Assembly Removal 1. Disconnect power to unit. 2. Remove the dispenser drawer. 3. Remove the control panel. (See Control Panel Removal) 4. Remove the top panel. (See Top Panel Removal) 5. Remove the four 1/4 dispenser body screws. 8. Remove the diverter motor. (See Diverter Motor Assembly Removal) 9. Slide the dispenser body toward the rear of the washer approximately 1/2 then pull housing toward the center of the washer. 10. Remove the hoses connected to the back of the dispenser housing to remove. Note: When reinstalling the dispenser housing, ensure the water restricter and vent tube O-ring is installed. 6. Bend the four vent tube embosses as shown below. 63

64 Diverter Motor Assembly Diverter Motor Assembly Strip Circuit IMC J701-6 Switched L1 Diverter Motor D To Neutral IMC J101-2 Pin 4 Pin 1 +5 VDC IMC J501-7 Position Switch Motor Operating Voltage: 120 VAC Motor Resistance: 1.4 kω Switch Operating Voltage: 5 VDC Location: See Diverter Motor Assembly Location on page 35. The diverter assembly consists of a drive motor and position switch. It is used to position the water diverter to the appropriate position for dispensing additives. The diverter motor is connected to a lobed cam that operates the diverter switch as it rotates. Lobe Lobe Lobe Internal View Lobe Switch Contact Switch Contact +5 VDC In +5 VDC Out Motor (N) Motor (L1) To Sensing Circuits IMC J501-2 Diverter Motor Assembly Tests 1. Enter service mode. 2. Run Test 08. a. Press the Start key to begin the test. The dispenser will move to the pre-wash compartment, pdt will be displayed and the cold water valve will be energized b. Each successive press of the Start key will advance the dispenser to the next position and display the compartment name. Diverter Motor Assembly Diagnostics Diverter Motor Not Running 1. Operate the diverter motor is service mode. 2. Check for 120 VAC between pins 3 and 4 of the diverter motor. a. If 120 VAC is present and the diverter motor is not rotating, replace the diverter motor assembly. b. If 120 VAC is not present check wiring between the diverter motor and IMC board. If wiring is ok, replace IMC board. Diverter Motor Runs Continuously 1. Disconnect the diverter motor harness and check for 5 VDC between the orange and brown wires. a. If 5 VDC is not present, check wiring to IMC board. If wiring is OK, replace the IMC board. b. If 5 VDC is present, reconnect harness and go to step Operate the diverter motor in service mode. 4. Check for voltage changes between pins 1 and 2 64

65 of the diverter motor connector as the motor is rotating. a. If voltage is switching between 5 VDC and 0 VDC and the diverter runs continuously, replace the IMC board. b. If voltage is a constant 5 VDC or 0 VDC, replace the diverter assembly. Diverter Motor Assembly Removal 1. Disconnect power to the unit. 2. Remove the control panel. (See Control Panel Removal) 3. Disconnect the diverter motor harness. 4. Using a flat blade screwdriver, pry up the diverter linkage arm from the diverter motor assembly. 5. Remove the two 1/4 hex diverter motor screws and lift motor assembly up. 65

66 Wash System Drain Pump Operating Voltage: 120 VAC Resistance: 14.8 Ω Recirculation Pump Drain Pump Location (Front View) Drain Pump 3. Press the Start key to begin the test. 4. The door locks and the cold water valve is turned on. The control will fill to the main water level, and then turn off the valve. Drain Pump Diagnostics 5. Check for current draw at IMC J a. If current draw is detected and water is not draining, check for foreign material in pump and pump filter. b. If no current draw is detected, go to step Check for 120 VAC between IMC J701-4 and IMC J a. If 120 VAC is not present replace the IMC board. b. If 120 VAC is present check wiring between IMC board and pump. If wiring is ok replace pump. Drain Pump Removal 1. Disconnect power to the unit. 2. Open the pump clean out and drain excess water. 3. Remove the control panel. (See Control Panel Removal) 4. Remove the front panel. (See Front Panel Removal) 5. Remove the wire harnesses from the drain pump and recirculation pump (if present). Drain pump operation is controlled by a relay on the IMC board. The drain pump will be energized any time the pressure sensor frequency reads above the overflow level. Drain Pump Harness Recirc Pump Harness Switched L1 Drain Pump Strip Circuit IMC J701-4 Drain Pump D To Neutral IMC J101-2 Drain Pump Tests 1. Enter service mode. 2. Run Test Remove the right front top damper pin and push the damper aside. 7. Remove the drain pump hose. 8. Remove the recirculation pump hose (if present). 9. Remove the 5/16 sump hose clamp and remove 66

67 sump hose. 10. Remove the two 1/4 pump housing mounting screws. Recirculation Pump Operating Voltage: 120 VAC Resistance: 14.8 Ω Drain Pump Location (Front View) 11. Slide the pump housing backward to disengage the front locator pins. Drain Pump Locator Pin Recirculation Pump Locator Pin 12. Remove the three T-20 pump screws and remove the pump. Recirculation pump operation is controlled by a relay on the IMC board. Recirculation pump operation is monitored by the IMC through the pressure sensor. Before the recirculation pump starts, the IMC board records the current pressure sensor reading. When the recirculation pump is started, the IMC board looks for the pressure sensor reading to drop slightly. If this drop does not occur, the IMC sets a recirculation pump error code. Recirculation Pump Strip Circuit IMC J701-3 Recirculation Pump R To Neutral IMC J

68 Recirculation Pump Tests 1. Enter service mode. 2. Run Test Press the Start key to begin the test. 4. The door locks and the cold water valve is turned on. The control will fill to the main water level and then turn off the water valve. When the water level is above the Recirculation Pump Set level, the recirculation pump will operate. If the water level is below the Recirculation Pump Set level, the recirculation pump will turn off. Recirculation Pump Diagnostics 1. Check for current draw at IMC J If current draw is detected and water is not circulating, check for foreign material in pump and pump filter. If no current draw is detected, go to step Check for 120 VAC between IMC J701-3 and IMC J If 120 VAC is not present replace the IMC board. If 120 VAC is present check wiring between IMC board and pump. If wiring is ok replace pump. Recirculation Pump Removal See Drain Pump Removal. Overnight Dry Fan The overnight dry fan is used when the Overnight Dry feature is selected. Overnight dry is intended for smaller loads only and is not available on all cycles. Choose a cycle that allows this feature then press the Overnight Dry button, the overnight dry LED will light up. Press Start and the wash cycle will start. Overnight dry takes place once the wash cycle is completed. Drying is accomplished by tumbling the clothes and moving a steady stream of air through the machine. The fan only operates at one speed VDC DC GND Overnight Dry Fan Strip Circuit IMC J102-1 IMC J102-3 Overnight Dry Fan Tests 1. Enter service mode. 2. Run Test Verify fan operation. OND Fan Motor OND Overnight Dry Fan Diagnostics 1. Operate the fan motor in service mode. 2. Check for 13 VDC at the overnight dry fan connector. If 13 VDC is present replace motor. If 13 VDC is not present go to step Check for 13 VDC at IMC J102 pins 1 & 3. If 13 VDC is present, check wire harness. If 13 VDC is not present, replace the IMC board. Housing Operating Voltage: 13.7 VDC Resistance: N/A Location: See Overnight Dry Fan Location on page 35. Fan Overnight Dry Fan Removal 1. Disconnect power to the unit. 2. Remove the control panel. (See Control Panel Removal) 3. Remove the top panel. (See Top Panel Removal) 4. Disconnect the overnight dry fan connector. 5. Remove the overnight dry fan hose. 6. Remove the 2 fan housing mounting screws. One is located at the top center of the fan housing and the other is located at the bottom center of the fan housing. 68

69 OND Hose Tab OND Hose Tab 7. Remove fan and housing from rear brace and pull the fan motor out of fan housing. 69