Technical Service Guide

Transcription

1 GE Consumer & Industrial Technical Service Guide February 2009 GE Café Radiant Range CS980SN1SS Start GE Appliances General Electric Company Louisville, Kentucky 40225

2 ! 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 ap pli ance may result in personal injury and property damage. The man u fac tur er or seller cannot be responsible for the in ter pre ta tion of this in for ma tion, nor can it assume any liability in connection with its use. WARNING To avoid personal injury, disconnect power before servicing this prod uct. If electrical power is required for diagnosis or test purposes, disconnect the power immediately after performing the necessary checks. 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 Consumer & Industrial Technical Service Guide Copyright 2009 All rights reserved. This service guide may not be reproduced in whole or in part in any form without written permission from the General Electric Company. 2

3 Table of Contents Component Locator Views...10 Control Features... 7 Control Panel...13 Convection Fan Assembly...18 Cooling Blower...18 Diagnostics and Service Information...23 Door Lock Assembly...21 Electronic Range Control (ERC)...13 Electronic Range Control (ERC) Pin Locator...20 ERC Failure Codes...23 Griddle Operation...17 Ground Strap Installation for 3-Wire Power Cord... 6 Introduction... 4 Lower Oven Bottom Element...14 Lower Oven Control...15 Lower Oven Drawer...12 Lower Oven Operation...16 Lower Oven Top Element...14 Nomenclature... 5 Range Components...12 Range Lockout Relay...17 Rangetop...12 Schematic...24 Thermal Switch...19 Warranty

4 Introduction *The new GE Café Radiant Ranges have the following features: Extra Large Capacity (5.0 cu. ft.) Self-Clean Convection Oven. PreciseAir Convection System Features an innovative fan that reverses direction for optimal air and heat circulation, providing even cooking and precise baking and roasting results. Single/Multi-Rack Convection Bake Provides ideal convection airflow throughout the oven cavity, using True European convection, to deliver consistent heat and optimal results on both racks. Lower Oven Offers an additional 1.0 cu. ft. of capacity for convenient baking from 150 degrees to 450 degrees. Dual Size Ribbon Element Offers a convenient choice of using a 9" or 12" heating element, depending on the size of the pan. Warming Zone Provides low heat capability for foods, making meal coordination simple. Pre-seasoned Cast Iron Griddle Provides an extra-large cooking surface for meats, pancakes or other food usually prepared in a frying pan or skillet. Integral feet attached to the bottom of the Griddle allow it to be placed on the rangetop and heated by one or both of the left side elements. The Griddle can be used in the oven. Range Lockout Allows consumer to lock out surface units, oven burners and control panel so they cannot be activated. * Features may vary by model. Griddle Bottom Griddle Top Foot (1 of 4 shown) 4

5 Nomenclature C S S N 1 S S C = GE Café S = Slide-In SS = Stainless Steel Engineering Code Feature Pack Model Year Model - Stainless Serial Number The first two numbers of the serial number identify the month and year of manufacture. Example: AS123456S = January, 2009 The nomenclature tag of this range is located on the oven frame behind the lower oven drawer. In addition to the model and serial numbers, this tag shows the supply voltage requirements and wattage ratings of the elements. The mini-manual is located behind the range on the upper back panel. A - JAN D - FEB F - MAR G - APR H - MAY L - JUN M - JUL R - AUG S - SEP T - OCT V - NOV Z - DEC S R M L H G F D A Z V T The letter des ig nat ing the year re peats every 12 years. Example: T T T Mini-manual Nomenclature 5

6 Ground Strap Installation for 3-Wire Power Cord 1. Remove the two 1/4-in. hex-head screws and the wire cover from the back of the range. WARNING: The neutral or ground wire of the power cord must be connected to the neutral terminal located in the center of the terminal block. The power leads must be connected to the lower left and the lower right terminals of the terminal block. 2. Remove the 1/4-in. hex-head screw that attaches the copper ground strap to the lower back of the range. Retain the copper ground strap and return the screw to this location. 2 screws to remove wire cover 4. Remove the lower center screw (if present) and loosen the upper center screw on the terminal block. 5. Slide the open slotted end of the ground strap under the upper center screw on the terminal block. Make sure the ground strap is all the way against the upper center screw and tighten it in place. Note: In the following step, be sure that the ground strap does not contact any insulation that would prevent full contact with the range frame. 6. Place the metal ground plate over the bottom of the copper ground strap with the word GROUND facing away from the range frame. Press strap and plate against the range frame and attach them with the ground screw. 7. Install the lower center screw removed in step 4. Retaining tab Terminal block Ground strap Ground strap Neutral terminal Back of range Wire cover 8. Complete the 3-wire power cord or 3-wire conduit installation as appropriate for your application. 3. Remove the 1/4-in. hex-head ground screw, located to the left of the terminal block, that attaches the metal ground plate to the lower back of the range. Retain the metal ground plate and ground screw. Note: Wire used, location of splices, etc., must conform to good wiring practices and local codes. 9. Place the wire cover under the retaining tab and install the two 1/4-in. hex-head screws and the wire cover to the back of the range. Ground screw Terminal block Ground plate Neutral terminal 6

7 Control Features Using the upper oven controls. (Throughout this manual, features and appearance may vary from your model) Features and appearance may vary. Oven Control, Clock, Timer and Features BAKE Pad Touch to select the bake function. BROIL HI/LO Pad Touch to select the broil function. CONVECTION BAKE MULTI/1 RACK Pad Touch to select baking with the convection function. CONVECTION ROAST Pad Touch to select roasting with the convection function. START Pad Must be touched to start any cooking or cleaning function. Display Shows the time of day, oven temperature, whether the oven is in the bake, broil or self-cleaning mode, the times set for the timer or automatic oven operations, and if the range is locked. SELF-CLEAN Pad Touch to select self-cleaning function. See the Using the self-cleaning oven section. If F and a number or letter flash in the display and the oven control signals, this indicates a function error code. Touch the CLEAR/OFF pad. Allow the oven to cool for one hour. Put the oven back into operation. If the function error code repeats, disconnect the power to the oven and call for service. If your oven was set for a timed oven operation and a power outage occurred, the clock and all programmed functions must be reset. The time of day will flash in the display when there has been a power outage. 7 OVEN LIGHT Pad Touch to turn the oven light on or off. DELAY START Pad Use along with COOKING TIME or SELF CLEAN pads to set the oven to start and stop automatically at a time you set. COOKING TIME Pad Touch and then touch the number pads to set the amount of time you want your food to cook. The oven will shut off when the cooking time has run out. CLEAR/OFF Pad Touch to cancel ALL upper oven operations except the clock, timer and Range Lockout. CLOCK Pad Touch before setting the clock. Number Pads Use to set any function requiring numbers such as the time of day on the clock, the timer, the oven temperature, the internal food temperature, the start time and length of operation for timed baking and self-cleaning. KITCHEN TIMER ON/OFF Pad Touch to select the timer feature. PROBE Pad Touch when using the probe to cook food. RANGE LOCKOUT Pad Touch the RANGE LOCKOUT pad and then touch the START pad to lock/unlock the surface units, oven burners and control panel so they cannot be activated. (Continued next page)

8 Adjust the upper oven thermostat. Note: This adjustment will not affect the broiling or the self-cleaning temperatures. The adjustment will be retained in memory after a power failure. To Adjust the Thermostat 1 2 Touch the BAKE and BROIL HI/LO pads at the same time for 3 seconds until the display shows SF. Touch the BAKE pad. A two digit number shows in the display. Touch BAKE once to decrease (-) the oven temperature, or twice to increase (+). 3 4 The oven temperature can be adjusted up as much as 35 F or down as much as 35 F. Touch the number pads the same way you read them. For example, to change the oven temperature 15 F, touch 1 and 5. When you have made the adjustment, touch the START pad to go back to the time of day display. Use the oven as you would normally. Note: The thermostat adjustment for Baking will also affect Convection Baking or Convection Roasting. Using the lower oven drawer. To Use the Lower Oven Drawer 1 2 Push in and turn the lower oven drawer knob to any desired setting. Allow the lower oven drawer to preheat. The ON signal light is located on the upper right side of the knob and glows when the knob is in the ON position. It remains ON until the knob is moved to the OFF position. The Heating signal light is located below the ON signal light and glows when the heating elements are active. Preheat is complete after the Heating signal has turned off for the first time with each use. Adjust the lower oven thermostat. Note: This adjustment will not affect the broiling temperatures. To Adjust the Thermostat 1 2 Pull the OVEN CONTROL knob off the range and look at the back side. To make an adjustment, loosen (approximately one turn), but do not completely remove, the two screws on the back of the knob. With the back of the knob facing you, hold the outer edge of the knob with one hand and turn the front of the knob with the other hand. To raise the oven temperature, move the top screw toward the right. You ll hear a click for each notch you move the knob. Notes: Always use the included drawer rack when using the Lower Oven Drawer. The lower oven drawer cannot be used during a self-clean cycle of the upper oven. Do not put food, foil or cookware directly on the bottom of the lower oven drawer. Always use the included drawer rack. If foods require a cover, use only foil or lids able to withstand baking temperatures. Do not use plastic. Maximum height of foods that can be placed in the lower oven drawer is 4". Do not put liquid or water in the lower oven drawer. Never place plastics, paper, canned foods or combustible material in the lower oven drawer. To lower the temperature, move the top screw toward the left. Each click will change the oven temperature approximately 10 F. (Range is ± 60 F. from the arrow.) We suggest that you make the adjustment one click from the original setting and check oven performance before making any additional adjustments. After the adjustment is made, retighten screws so they are snug, but be careful not to overtighten. Re-install knob on range and check performance. 8 (Continued next page)

9 Using the griddle. The non-stick coated griddle provides an extra-large cooking surface for meats, pancakes or other food usually prepared in a frying pan or skillet. Note: The griddle will discolor over time as it becomes seasoned with use. How to Place the Griddle Caution: Place and remove the griddle only when the griddle is cool and all surface units are turned off. IMPORTANT: Always place and use your griddle on the left surface units only. Note: Do not clean the griddle in the self-cleaning oven. Most griddled foods require cooking on a preheated surface. Preheat griddle then switch to the desired cook setting. To turn on the surface units for the entire griddle, turn the knob clockwise. To turn on the surface unit for the back half of the griddle, turn the knob counterclockwise. Caution: The entire griddle will still become hot. IMPORTANT NOTES: Avoid cooking extremely greasy foods and be careful of grease spillover while cooking. Never place or store any items on the griddle, even when it is not in use. The griddle can become heated when using the surrounding surface units. Care and cleaning of the griddle. Cast Iron Griddle Re-Seasoning the Cast Iron Griddle Rinse with hot water (do not use soap), and dry thoroughly. Before cooking, prepare the surface with cooking spray or vegetable oil. After cooking, clean the griddle with a stiff brush and hot water. Using soap is not recommended, and harsh detergents should never be used. Towel dry immediately and apply a light coat of cooking spray or vegetable oil while the griddle is still warm. Store in a cool, dry place. Do not wash in a dishwasher. Griddle Precautions: Seasoning is the process of vegetable oil absorbing into the pores of the iron griddle. The griddle was seasoned during manufacture. If food sticks to the surface, or you notice a dull, gray color, the griddle will need to be re-seasoned. Wash the griddle with hot, soapy water and a stiff brush. (It is okay to use soap this time because you are preparing to re-season the griddle). Rinse and dry completely. Apply a thin, even coating of MELTED solid vegetable shortening (or cooking oil of your choice) to the griddle (top, sides, and bottom). If something has spilled under the griddle, it should be cleaned up as soon as possible to prevent baked on food soil. Do not allow grease to accumulate under the griddle as it can be a fire hazard. Clean under the griddle as soon as it is cool. 4 5 Place aluminum foil on the bottom rack of the oven to catch any dripping. Set oven temperature to degrees F. Do not place the griddle in the microwave. Always turn off all surface units before removing the griddle. Use caution when handling a hot griddle. 6 7 Place griddle upside down on the top rack of the oven. Bake the griddle for at least one hour. After the hour, turn the oven off and let the griddle cool in the oven. 8 Store the griddle uncovered, in a cool, dry place when cooled. 9

10 Component Locator Views Front View (Shown with Oven Door Removed) Control Panel Broil Element Meat Probe Outlet Oven Temperature Sensor Convection Fan Bake Element Lower Oven Drawer Lower Oven Compartment (Shown with Lower Oven Drawer Removed) Thermostat Capillary Tube Broil Element Bake Element Roller Catch 10 (Continued next page)

11 Rear View (Shown with Back Cover, Terminal Cover and Griddle Relay Cover Removed) Cooling Fan Broil Element Convection Element Convection Fan Motor Range Lockout Relay Bake Element Griddle Relay #1 Griddle Relay #2 Rangetop (Shown with Rangetop wire harnesses and ground wire disconnected.) Hot Surface Indicator Light Assembly Dual Surface Element Dual Surface Element Single Surface Element Single Surface Element Cook-Warm Zone Surface Element Thermal Switch 11

12 Range Components WARNING: Sharp edges may be exposed when servicing. Use caution to avoid injury. Wear Kevlar gloves or equivalent protection. Lower Oven Drawer The lower drawer can be removed by pulling the drawer straight out until it stops, pressing the tabs firmly inward on both sides of the drawer rails and pulling the drawer forward until disengaged from the drawer guides. Note: When in the closed position, the strike on the back of the drawer is captured by the roller catch. The strike is riveted in place and is not adjustable. The roller catch is attached to the range floor with two 1/4-in. hex-head screws that, when loosened, can provide a small amount of adjustment. Range Floor Roller Catch Back of Drawer Strike Rangetop To remove the rangetop: The lower drawer can be installed by placing each drawer rail around each inner rail guide and sliding both in slightly to hook them, then firmly sliding the drawer all the way in Pull out the range from its installation. Remove the three 1/4-in. hex-head screws that attach the vent trim to the rangetop. Lift and remove the vent trim. Vent Trim 4. Remove the two 1/4-in. hex-head screws that attach the rangetop to the range. Rangetop 5. Raise the rear of the rangetop, then slide the rangetop toward the rear of the range about 6 inches. (Continued next page) 12

13 6. Remove the two 1/4-in. hex-head screws and the heat shield from the range. 3. Remove the 2 Phillips-head locator pins from the top of the range. 4. Place a towel or protective item across the top of each side panel. 5. Slide the control panel forward, rotate and place the panel top down across the range on the protective surfaces as shown. Heat Shield Note: When installing rangetop, be sure to engage slots in rangetop underneath locator pins. Locator Pin Service Position 7. Disconnect the 2 rangetop wire harnesses. 8. Remove the 1/4-in. hex-head screw that attaches the ground wire to the range. Disconnect Disconnect Electronic Range Control (ERC) The ERC is attached to a bracket that houses the touch panel. It is necessary to remove the bracket from the control panel to access the screws that attach the ERC. Viewed in the service position, the bracket is attached with 2 Phillips-head screws at the top and 2 tabs at the bottom that lock into a fold in the control panel. To remove the electronic oven control (ERC): 9. Carefully lift the rangetop and place it on a protective surface. Note: When installing the rangetop, be sure both rangetop wire harnesses are positioned underneath the heat shield Place the control panel in the service position. (See Control Panel.) Mark and disconnect all wiring from the ERC. Remove the 2 Phillip-head screws from the top of the control panel. Control Panel To access the control panel: 1. Remove the rangetop. ( See Rangetop.) 2. Remove the 4 Phillips-head screws from the bottom of the control panel. 13 (Continued next page)

14 4. Carefully lift the 2 tabs out from the panel fold, then remove the ERC from the control panel. 4. Reach behind the element and pull off the 2 element wire connectors. 5. Remove the two 1/4-in. hex-head screws that attach the element to the oven floor. Tab Panel Fold Tab 5. Remove the four T-15 torx screws that attach the ERC to the bracket. 6. Remove element from the oven. Note: When installing the element, be sure to place element under the 3 retainers before installing element-to-floor screws. Retainers Lower Oven Bottom Element To remove the lower oven bottom element: 1. Remove the lower oven drawer. (See Lower Oven Drawer.) 2. Remove the 2 slotted screws and the oven rear panel. Lower Oven Top Element To remove the lower oven top element: 1. Remove the lower oven drawer. (See Lower Oven Drawer.) 2. Remove the 2 slotted screws and the oven rear panel. (See Lower Oven Bake Element.) Oven Rear Panel 3. Remove the two 1/4-in. hex-head screws that attach the top element terminal cover. Place cover aside. 3. Remove the two 1/4-in. hex-head screws that attach the bottom element terminal cover. Place cover aside. 14 (Continued next page)

15 4. Reach behind the element and pull off the 2 element wire connectors. 5. Remove the six 1/4-in. hex-head screws that attach the top element to the oven ceiling. 6. Squeeze and remove the capillary bulb clips and remove them from the holes in the oven ceiling. Holes in Ceiling 7. Remove the 4 Phillips-head screws and the locator pin from the top of the left side panel. 8. Remove the six 1/4-in. hex-head screws from the back of the left side panel. Lower Oven Control 9. Carefully spread the rear of the left side panel out from the range approximately 10 inches. To remove the lower oven control: 1. Remove the rangetop. (See Rangetop.) Remove the lower oven control knob. Remove the 2 Phillips-head screws and the control from the control panel. 4. Mark and remove the wires from the control. 5. Push up and release the capillary bulb from each capillary bulb clip. Capillary Bulb Clip Capillary Bulb Push the capillary bulb through the entry hole while pulling the capillary from the range.

16 Lower Oven Operation Note: The lower oven cannot be used during a self-clean cycle of the upper oven. The lower oven operates in the following manner: When the lower oven control is turned counterclockwise, The control contacts COM to NO close supplying L1 to the baking elements, pilot lamp and heating lamp. The pilot lamp will be lit because neutral is not interrupted. The control cycling contacts N to H close supplying Neutral to the baking elements and heating lamp. Note: When the control is turned counterclockwise, both elements are at L1 potential regardless of the status of contacts N to H. Neutral is cycled to control oven temperatures. 16

17 Range Lockout Relay The range lockout feature (on some models), allows the user to lockout the surface units, upper oven, and control panel so they cannot be activated. When the control is set for RANGE LOCKOUT, the control deactivates the upper oven and control panel and energizes the lockout relay that locks out the surface units so they cannot be activated. (See Control Features.) The relay is also energized when the oven door is locked (COM to NO closed). When energized, the lockout relay will open contacts 7 to 1 and 9 to 3, disconnecting L2 from the surface units. EOC The control RY3 relay will close and complete the circuit that supplies the voltage to the lockout relay. SW4 LATCH COM NO NC TO SURFACE UNITS TO LOWER OVEN THERMOSTAT Griddle Operation The griddle, placed over the left side surface elements, can be heated using the rear element only or both the front and rear elements at the same time. Two relays are used to allow only the left rear infinite heat switch to operate both front and rear elements. When the left rear control is turned clockwise to select griddle: P2 closes to 4, supplying L1 voltage to the left rear element. P2 closes to S2, supplying L1 voltage to the left surface indicator light. P2 closes to 4a, supplying L1 voltage to the griddle ON indicator light, relay 1 and relay 2. Relay 2 (now operating on 120VAC) disconnects L1 voltage from the left front control. Relay 1 (now operating on 240VAC) simultaneously: Disconnects the left front control element cycling contacts, P1 to 2, and connects both left front elements directly to L2. Connects L1 voltage directly to both left front elements. Contacts P1 to 2, on the left rear control, now cycle L2 voltage to both the left rear element and to relay 1, which now operates both left front elements. Note: With the griddle turned off and the left rear hot surface light on (glass temperature above 150 F), 27 VAC will be applied to relay 2 and 97 VAC will be applied to relay 1. During this time, both relays may produce a slight hum/vibration. Neither relay will be operating. The hum/vibration will cease once the hot light switch contacts 1b to 2b open. 17

18 Cooling Blower The two-speed cooling blower is located on the rear of the range. Air is pulled in by the blower blades through slots below the control panel and circulated in the space below the component compartment and above the top of the oven liner. The air is exhausted through the right side of the oven vent trim. Low speed is used for cooking functions and high speed is used only in the self-clean mode. The blower is operated by the ERC (a function of oven temperature), when cooling timing parameters are met. Blower speed is determined by the position of door latch switch #3. (See Door Lock Assembly.) Cooling Timing Parameters The cooling blower will not turn on immediately when a cooking function is set. IT WILL TURN ON WHEN THE OVEN TEMPERATURE REACHES APPROXIMATELY 450 F. If the oven is turned off and the blower is running, the blower will remain on until the oven temperature drops to below 300 F. Cooling blower motor approximate resistance values: Low speed (C to L) = 20 Ω High Speed (C to H) = 24 Ω To remove the cooling blower, it is necessary to remove the rangetop (See Rangetop.), and rear panel. The cooling blower assembly is attached with six 1/4-in. hex-head screws. L H Convection Fan Assembly The convection fan assembly is located on the back wall of the oven cavity and consists of the convection cover, fan blade, and motor. The fan motor utilizes a capacitor that can be accessed from the back of the range. (See Component Locator Views.) The convection fan blade can be removed from inside the oven. The convection fan motor can be removed from the back of the range. The convection fan operates during the following modes: Preheat Convection Bake Convection Roast The convection fan will turn on after a short delay. The fan may cycle on and off, and change direction in any of these modes, to best distribute hot air in the oven. The convection fan shuts off when the door is opened. The convection element is located on the upper oven back wall and can be removed from inside the oven cavity. The element is rated at 1200 watts, has an approximate resistance value of 12 Ω, and draws approximately 10 amps. OPERATING CHARACTERISTICS Convection Bake - Single Rack preheats with bake element and broil element operating (cycling) alternately. Heat maintained with bake element. Fan alternates CW and CCW rotation. Preheat C Red box indicates cycling contacts 18 (Continued next page)

19 Heat Maintained Convection Roast preheats with bake element and broil element operating (cycling) alternately. Heat maintained with bake element and broil element operating (cycling) alternately. Fan rotates CCW. Preheat and Heat Maintained Red Box indicates cycling contacts Convection Bake - Multi Rack preheats with bake element and broil element operating (cycling) alternately. Heat maintained with convection element only. Fan alternates CW and CCW rotation. Preheat Thermal Switch Red Box indicates cycling contacts The thermal switch is located under the rangetop on the burner box floor and protects the electronics from damage should a high temperature condition occur when the range is in the self-clean mode. Thermal Switch Red Box indicates cycling contacts Heat Maintained The thermal switch is wired in series with the lock motor switches. The thermal switch opens at 265 F. The switch closes when temperatures cool below approximately 220 F. If the thermal switch opens during the following conditions: Oven Temperature Below 600 F (315 C). Program is cancelled when thermal switch opens. Lock motor will run and the word LOCKED will be flashing in the display. Red Box indicates cycling contacts Oven Temperature Above 600 F (315 C). Any mode of operation control will go to -F2- failure code. When this condition exists, check the fan operation (look for obstructions), inspect oven installation (make sure grill areas are not blocked), oven insulation, and lock circuit. 19

20 Electronic Range Control (ERC) Pin Locator TB640 TB102 TB630 TB101 TB650 TB655 TB620 RY 500A1 RY 540B RY 502A1 RY 501A1 TB660 TB661 CN2 CN950 CN2 - Sensor, Thermal Switch, Door Lock, Switch, Door Unlock Switch, Probe CN950 - Glass Touch Board RY500A1 - Broil RY501A1 - Bake RY502A1 - Convection Element RY540B - Double Line Break TB101 - L1 TB102 - Neutral TB620 - Oven Light TB630 - Door Lock Switch TB640 - Door Lock Switch, Lock Out Relay TB650 - Convection Motor CW TB655 - Convection Motor CCW TB660 - Door Lock Motor TB661 - Door Lock Common 20

21 Door Lock Assembly The door lock assembly consists of a lock motor cam and switch assembly (switches #1, #2, #3, and #4), lock hook, and mounting plate. The lock motor is energized when the control is set for CLEAN and START is selected. The RY1 relay contacts will close and complete the circuit that supplies the voltage to the lock motor. DOOR LATCH OUTPUT PIN 5 DOOR LATCHED INPUT PIN 4 DOOR UNLATCHED INPUT PIN 3 CN2 UNLOCKED THERMAL SWITCH DOOR LOCK SW1 LATCH DOOR UNLOCK SW2 LATCH CAM The cam on the motor performs two functions: Positions the lock hook in the door to prevent opening during clean operation. Operates the lock switches which tell the control if the door is unlocked or locked and ready for clean operation. Note: When the door is either being locked or unlocked, both lock switches will be in the open position. Switch #3 controls cooling fan motor speed. Hi speed is used when the self-clean cycle is selected and the door is locked and low speed for other oven selections when the door is unlocked. COOLING FAN DOOR LATCH OUTPUT PIN 5 DOOR LATCHED INPUT PIN 4 DOOR UNLATCHED INPUT PIN 3 LOCKED DOOR LOCK SW1 LATCH DOOR UNLOCK SW2 LATCH CN2 THERMAL SWITCH The lock switch circuit tells the control if the lock motor is in the unlocked or locked position or somewhere in between. There are two lock switches mounted to and operated by the lock motor. The lock switch circuit is from the control, through one of the lock switches (switch #2 for unlocked or switch #1 for locked), back to the control. If neither switch is closed, and the oven temperature is below 600 F (315 C), control will energize the lock motor circuit until the correct switch closes to complete the circuit. (If circuit to the correct switch is open, lock motor will run continuously with the oven below 600 F [315 C].) Note: If initiating a clean cycle with the door switch in the C to NC position (door open), the control display will flash LOCKED and will sound a series of beeps, followed by cancellation of the clean selection. The word LOCKED will flash on and off in the display while the lock motor is in motion. When the door is locked, the word LOCKED will remain illuminated in the display. Switch #4 locks out the lower oven and all surface units when the self-clean cycle is selected and the door is locked. LOCKOUTS IN CLEAN CYCLE The door lock motor has an approximate resistance value of 2K Ω. The resistance of the door lock motor can be checked on the ERC. Place the control panel in the service position. (See Control Panel.) With the door closed, test between TB660 (MDL) and N on the ERC for the approximate resistance value. 21 (Continued next page)

22 Lock Assembly Removal The lock assembly is attached to the front of the range by two T-15 Torx screws. To replace the door lock it is necessary to place the control panel in the service position (See Control Panel.), remove the lock assembly insulation, and two 1/4-in. hex-head screws and the lock assembly cover. Door Lock Assembly (top view shown with insulation and cover removed) Door Lock Assembly (removed, rear view shown) Switch #2 Lock Motor NO C Switch #3 NC NO C Switch #1 Switch #4 C NO NC NO C Switch Function Door UnLocked Door Locked C NO NC 1 Door Lock C - NO open C - NO closed Yellow Gray N/A 2 Door Unlock C - NO closed C - NO open Yellow Orange N/A 3 Cooling Fan Motor Speed Hi speed in clean, Low speed in other modes 4 Lower oven and all surface unit lockout in Clean cycle C - NO closed C - NC open C - NO closed C - NC open C - NO open C - NC closed C - NO open C - NC closed Gray/Red Black Blue Red Violet Brown Caution: It is possible to reconnect the switch wiring incorrectly to the lock assembly. When reconnecting the wiring, make sure it is properly connected to the lock assembly before turning the power back on. 22

23 Diagnostics and Service Information ERC Failure Codes The oven may stop operating but not give an F code on the display immediately. F codes are stored in non volatile eeprom memory until 2 of the same fault occur consecutively. After that, it will be displayed. They can be recalled by pressing together: TIMER, CLOCK, 9. While displayed, pressing 8 and 6 together will clear them. A fault must exist continuously for 5 minutes before an F code is recorded (F2, F8 are sooner). FAILURE CODE MEANING CORRECTION -F0- Shorted OFF key Determine if problem is with Key Panel or control by disconnecting ribbon cable and measuring flat cable pins 13 to 14. Should be open. Should be ohms while pressing OFF key. -F2- -F3- -F4- Over temperature inside oven cavity as measured by sensor over 600 F unlatched or 915 F latched. Open oven sensor (over 2900 ohms) Shorted oven sensor (under 950 ohms) - Welded relay contacts - Cooling fan stalled or blocked - Airflow to rear of unit - High resistance in oven sensor leads/connectors - (especially at sensor in rear) - Disconnect power. - Disconnect sensor harness from control. Measure sensor resistance (white leads) to be ohms at room temperature with 2 ohms per degree change. - Look for damaged harness terminals if not a bad sensor. - Disconnect power. - Disconnect sensor harness from control. Measure sensor resistance (white leads) to be Ω at room temperature with 2 ohms per degree change. - Look for damaged harness terminals if not a bad sensor -F5- A to D system fault Replace control -F6- -F7- Range Lockout - Switch issues Shorted matrix or START key Check connections on lockout motor and CN6 of control. Determine if problem is with Key Panel or control by disconnecting ribbon cable and measuring flat cable using pinout chart. Allow up to 1000 ohms when pressing key. -F8- EEPROM data shift failure If repeated, replace control -F9- Door Lock false while above Runaway Setpoint, Unlatched Door Lock temperature. OR Thermal switch device setpoint exceeded. Unlock Latch Changing status to Lock while cooking or Lock Latch of Motor changing to Un-Lock while above run away set point 23

24 Schematic WARNING: Disconnect electrical power before servicing. Caution: Label all wires prior to disconnection. Wiring errors can cause improper and dangerous operation. Verify operation after servicing. Schematic Diagram 24

25 Warranty GE Electric Range Warranty. (For customers in the United States) All warranty service provided by our Factory Service Centers, or an authorized Customer Care technician. To schedule service, on-line, 24 hours a day, visit us at ge.com, or call 800.GE.CARES ( ). Please have serial number and model number available when calling for service. For The Period Of: GE Will Replace: Staple your receipt here. Proof of the original purchase date is needed to obtain service under the warranty. One Year From the date of the original purchase Five Years From the date of the original purchase Any part of the range which fails due to a defect in materials or workmanship. During this limited one-year warranty, GE will also provide, free of charge, all labor and in-home service to replace the defective part. A replacement glass cooktop if it should: crack due to thermal shock; discolor; crack at the rubber seal between the glass cooktop and the porcelain edge, or if the pattern wears off. A replacement radiant surface unit if it should burn out. During this limited additional four-year warranty, you will be responsible for any labor or in-home service. What GE Will Not Cover: Service trips to your home to teach you how to use the product. Improper installation, delivery or maintenance. Failure of the product if it is abused, misused, or used for other than the intended purpose or used commercially. Damage to the glass cooktop caused by hardened spills of sugary materials or melted plastic that are not cleaned according to the directions in the Owner s Manual. Damage to the glass cooktop caused by use of cleaners other than the recommended cleaning creams. Replacement of house fuses or resetting of circuit breakers. Damage to the product caused by accident, fire, floods or acts of God. Incidental or consequential damage caused by possible defects with this appliance. Damage caused after delivery. Product not accessible to provide required service. EXCLUSION OF IMPLIED WARRANTIES Your sole and exclusive remedy is product repair as provided in this Limited Warranty. Any implied warranties, including the implied warranties of merchantability or fitness for a particular purpose, are limited to one year or the shortest period allowed by law. This warranty is extended to the original purchaser and any succeeding owner for products purchased for home use within the USA. If the product is located in an area where service by a GE Authorized Servicer is not available, you may be responsible for a trip charge or you may be required to bring the product to an Authorized GE Service location for service. In Alaska, the warranty excludes the cost of shipping or service calls to your home. Some states do not allow the exclusion or limitation of incidental or consequential damages. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. To know what your legal rights are, consult your local or state consumer affairs office or your state s Attorney General. Warrantor: General Electric Company. Louisville, KY