Technical Service Guide

Transcription

1 GE Appliances Technical Service Guide March 2015 Combination Wall Oven 27 JK3800DH1BB JK3800DH1WW JK3800SH1SS JK3800DH2BB JK3800DH2WW JK3800SH2SS 30 JT3800DH1BB JT3800SH1SS JT3800DH2BB JT3800SH2SS PT7800DH1BB PT7800DH1WW PT7800SH1SS PT7800DH2BB PT7800DH2WW PT7800SH2SS PT9800SH1SS PT9800SH2SS CT9800SH1SS GE Appliances General Electric Company Louisville, Kentucky

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 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, disconnect power before servicing this product. 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 Appliances Technical Service Guide Copyright 2015 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 Safety Requirements...6 Introduction...8 Additional Service Information...9 Nomenclature Accessories...11 Tools Needed...12 Service Harness Extension Installation...15 Owner's Manuals Information Oven Controls 3800 Series Oven Controls 7800 Series Oven Controls 9800 Series Oven Settings Oven Options Lower Oven Cooking Modes...27 Sabbath Mode Speedcook Operation...32 Upper Oven Components...34 Door Assembly...34 Control Panel Assembly Control Boards and Panel Connections...36 Removing Upper Oven...42 Upper Oven Electrical Components...43 Upper Heater and Oven Cavity TCO's...43 Lower Heater Assembly...43 Humidity Sensor...44 Turntable Motor

4 Convection Heater Assembly and Thermistor...45 Upper Heater Assembly...45 Blower Assembly...46 Convection Heater Element Convection Fan Motor Damper Assembly...48 Damper Door Switch...49 Magnetron and Magnetron TCO...49 High Voltage Transformer...50 Left and Right Door Switch Assemblies...50 Noise Filter...53 Surge Board...54 Capacitor and Diode Cavity Light Proof Feature Upper oven...55 Microwave Leak Test...56 Standard Test Load...56 Demo Mode...57 Schematic Diagram...58 Lower Oven Structural Components...59 Door Assembly...60 Gasket Vertical Brace...61 Lower Oven Electrical Components...64 Cooling Fan Motor Cooling Fan Motor Reinstallation...65 L2 High Limit Switch...65 Oven Sensor Lock Assembly...66 Elements...67 Hidden Bake...67 Broil

5 Convection Element Diagnostics...70 Software Versions / Fault Codes...70 Troubleshooting Lower Oven...71 Accessing Machine Control Board/Bridge Board Service Mode...74 GE Wall Oven Warranty

6 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 Brazing Glasses Prescription Safety Glasses Safety Glasses must be ANSI Z compliant Prior to disassembly of the oven 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 LOTO device and lock Step 5 Control (discharge) stored energy Step 6 Try It verify that the appliance is locked out 6

7 PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY. A. DO NOT OPERATE OR ALLOW THE OVEN TO BE OPERATED WITH THE DOOR OPEN. B. IF THE OVEN OPERATES WITH THE DOOR OPEN, INSTRUCT THE USER NOT TO OPERATE THE OVEN AND CONTACT THE MANUFACTURER IMMEDIATELY. C. MAKE THE FOLLOWING SAFETY CHECKS ON ALL OVENS TO BE SERVICED BEFORE ACTIVATING THE MAGNETRON OR OTHER MICROWAVE SOURCE, AND MAKE REPAIRS AS NECESSARY: 1. INTERLOCK OPERATION 2. PROPER DOOR CLOSING 3. SEAL AND SEALING SURFACES (ARCING, WEAR AND OTHER DAMAGE) 4. DAMAGE TO OR LOOSENING OF HINGES AND LATCHES 5. EVIDENCE OF DROPPING OR ABUSE D. BEFORE TURNING ON MICROWAVE POWER FOR ANY TEST OR INSPECTION WITHIN THE MICROWAVE GENERATING COMPARTMENTS, CHECK THE MAGNETRON, WAVE GUIDE OR TRANSMISSION LINE AND CAVITY FOR PROPER ALIGNMENT, INTEGRITY AND CONNECTIONS. E. ANY DEFECTIVE OR MISADJUSTED COMPONENTS IN THE INTERLOCK MONITOR, DOOR SEAL AND MICROWAVE GENERATION AND TRANSMISSION SYSTEMS SHALL BE REPAIRED, REPLACED OR ADJUSTED BY PROCEDURE DESCRIBED IN THIS MANUAL BEFORE THE OVEN IS RELEASED TO THE OWNER. F. A MICROWAVE LEAKAGE CHECK TO VERIFY COMPLIANCE WITH THE FEDERAL PERFORMANCE STANDARD SHOULD BE PERFORMED ON EACH OVEN PRIOR TO RELEASE TO THE OWNER. 7

8 Introduction GE s Updated Combination Wall Ovens GE has introduced the new versions of 27 inch and 30 inch combination wall ovens. In addition, an Advantium model was added to the wall oven line. The Advantium oven uses Speedcook technology to harness the power of light. The Advantium oven cooks the outside of foods much like conventional radiant heat, while also penetrating the surface so the inside cooks simultaneously. While halogen light is the primary source of power, a "microwave boost is added with certain foods. Foods cook evenly and fast, retaining their natural moisture. JK3800: 27 with microwave and conventional lower self-clean oven JT3800: 30 with microwave and conventional lower self-clean oven PT7800: 30 with convection microwave and convection lower self-clean oven PT9800/CT9800: 30 with Advantium oven and convection lower self-clean oven Common Features: Menu Driven Control: With 4 line graphical display. Panelized Cavities: 4.3 cu ft cu ft 30. Not a serviceable part. Hinge Receivers: Built into vertical supports. Cavity Racks: Conventional ribs built into cavity panels (on some models). Ladder Racks: Rack supports mounted to side panels (on some models). Latch Assembly: New design, enables door latch pawl to be unlatched if unit fails in LOCKED mode. Speedcook Oven: Delivers oven quality food up to four times faster than a conventional oven. No preheating required. True European Convection Oven: 1500 watt convection oven mode bakes and roasts at temperatures ranging from 80 F to 450 F. Sensor Microwave Oven: 975 watt sensor microwave oven mode automatically delivers perfect cooking results. Warming Oven: Keeps prepared foods warm and fresh, and retains perfect moistness and crispness. Proof Feature: Specialized mode allows dough to rise quickly. 16 in. Turntable: Removable metal and glass trays easily handle large casserole dishes. Rounded Rear Wall: Allows complete turntable rotation of 9 in. x 13 in. casserole dish for even cooking. Pre-programmed Recipes: Provide quick and easy programming of over 175 Speedcook food selections. Multi-Level Cooking: Removable rack allows cooking of multiple dishes at once. Non-Stick Cooking Tray: 16 in. Speedcook tray cleans up easily. Other Features: Slide Out Microwave/Advantium Module: For easier service. An adapter harness is available to enable unit to be connected and serviced out of oven enclosure. Service Mode: Available to assist technicians in the repair of the microwave/advantium portion of these ovens. 8

9 Additional Service Information Similar to previous models where a full size microwave was integrated into a 27 in. or 30 in. Wall Oven, the new design also incorporates a GE Advantium version. The ovens are built on the 2013 Wall Oven design, thus servicing them will be the same with a few exceptions. Lower oven does not have a service mode. A RJ-45 connector is available for service and/or software updates. Only uses Machine Control oven control. An added Bridge Board is used to communicate between the upper and lower ovens. For Microwave or Advantium service, the upper oven is a module that can be slid out for service. Service harness extension (Part #: WX05X24267) is available to enable the upper oven to be serviced and tested outside of its enclosure. Time of day display location may change. This is normal operation to preserve display brightness. This service guide will show the more complex version of the upper oven. The Advantium model has more components. The lower oven is based on the present production model of a single wall oven. 9

10 Nomenclature Serial Number The nomenclature breaks down and explains what the letters and numbers mean in the model number. The the year repeats every 12 years. Example: LA123456S = June, 2013 A JAN D FEB F MAR G APR H MAY L JUN M JUL R AUG S SEP T OCT V NOV Z DEC 2024 Z 2023 V 2022 T 2021 S 2020 R 2019 M 2018 L 2017 H 2016 G 2015 F 2014 D 2013 A The mini manual is located behind the middle oven trim. The nomenclature plate is located on the left hand side of the oven cavity. 10

11 kw Rating kw Rating Circuit Size 240V 208V (Dedicated) 20 amps 4.9 kw 7.2 kw 4.2 kw 6.2 kw 30 amps 7.3 kw 9.6 kw 6.3 kw 8.3 kw 40 amps 9.7 kw 12.0 kw 8.4 kw 10.4 kw 50 amps Highlighted circuit size is recommended for all Micro/Advantium units. DO NOT within the clamp, do not install the oven until a clamp of the proper size is obtained. The three power leads supplied with this appliance are suitable for connection to heavier gauge household wiring. The insulation of these three leads is rated for temperatures much higher than the temperature rating of the household wiring. The current-carrying capacity of the conductor is governed by the wire gauge and the temperature rating of the insulation around the wire. Accessories DWO 72 length Optional conduit for service WB18T10580 Small Broiler Pan (8 3/4 x 1 1/4 x 13 1/2 ) Large* Broiler Pan (12 3/4 x 1 1/4 x 16 1/2 ) XL** Broiler Pan (17 x 1 1/4 x 19 1/4 ) WB48X10055 (US) 222D2097G001 (Canada) WB48X10056 (US) 222D2097G002 (Canada) WB48X10057 (US) Not available in Canada Cleaning/Lubrication Supplies CitruShine Stainless Steel Wipes CeramaBryte Stainless Steel Appliance Cleaner WX10X10007 PM10X311 WB02T

12 Tools Needed Phillips head screwdriver or bit 1/4 hex head nut driver or socket 3/8 socket wrench 7 mm socket or wrench T10 Torx bit T20 Torx bit Upper oven door removal tool. WB01X10364 included with replacement door assembly. Special Tools No special tools are required to service these units. Upper oven screws are primarily Phillips head, and lower oven screws are 1/4 in. hex head or T20. The screw mounting the fad board on the lower oven is a T10, and the LH threaded nut on the convection blade is 3/8 inches. Service Harness Extension Part #: WX05X24267 *To enable service of the upper oven without removing the complete wall oven from the installation. hanger, or a piece of brazing solder. Be sure to cover with tape to prevent scratching of the door or trim. 12

13 Service Harness Extension To enable testing the upper oven, outside of enclosure, use the Service Harness Extension (WX05X24267). This 6 foot cable consists of a 2 wire communications cable along with a 3 wire AC cable. Lower Oven Upper Oven 13

14 Machine Control: A separate control board that contains all relays and communicates with the User Interface to control all outputs. The Machine Control is located behind the control panel housing. User Interface: A LOGIC board that interprets customer input from the keypanel. Bridge Board: An interface board that communicates between the User Interface, Machine Control and Microwave Controls. Glass Touch: A capacitive glass panel that transfers key pad touches to the User Interface board. It is connected by a harness to the Machine Control. The User Interface plugs directly into the Glass Touch assembly. Thermal Limit Switch: These temperature operated switches provide a safety back-up in case of a thermal run-away. All are one-shot and will need replacement if they open. Check for the cause of over temperature! FAD - Fan Apparency Device: In previous models, these were temperature operated devices that would open a circuit if the area got over temperature. Current production models use FAD boards that monitor cooling fan speeds; the control will shut down operation if fan speed is not within valid range. The boards will also log a F96, F97, F98 or F99 code. This operates like a miniature tachometer. SWO: Single Wall Oven DWO: Double Wall Oven DLB: A relay to isolate elements from L2, must close for all heating cycles. 14

15 Installation CUTOUT FOR DOUBLE OVENS (with Upper Microwave Oven) NOTE: If the cabinet does not have a front frame and the sides are less than 3/4 (1.9 cm) thick, shim both sides equally to establish the cutout width. Dim. Description 27 Oven with Microwave 30 Oven with Microwave A Cabinet Width 27 (68.6 cm) 30 (76.2 cm) B Cutout Width 25 (63.5 cm) min. 28 1/2 (72.4 cm) min. 25 1/4 (64.1 cm) max. C Cutout Height 41 1/8 (104.5 cm) min. 28 5/8 (72.7 cm) max. 42 3/16 (107.2 cm) min. D E Overlap of Oven Over Side Edges of Cutout Clearance to Adjacent Corners, Drawers, Walls, etc., When Door Is Open 41 1/4 (104.8 cm) max /4 (107.3 cm) max. 1 (2.5 cm) 11/16 (1.75 cm) 23 (58.4 cm) min. 23 (58.4 cm) F Overlap of Oven Top of Cutout 1 (2.5 cm) min. 1 (2.5 cm) min. G Overlap of Oven Bottom of Cutout 1 (2.5 cm) min. 1 1/4 (3.2 cm) H Junction Box Location 8 3/4 (22.2 cm) max. right side only 9 1/2 (24.1 cm) max. right side only

16 SECURING UPPER MICROWAVE/ADVANTIUM OVEN TO CABINET For double oven with microwave or Advantium upper ovens. Secure a wooden cleat to side of cabinet so that the upper oven can be secured to the cleat with provided screws. 27 Cabinet requirements No shims (or cleats) required when cabinet is in minimum width condition. If cabinet is at maximum width condition, add wood shims to bring cabinet to minimum condition. 30 Cabinet requirements No shims (or cleats) required when cabinet is in minimum width condition. wood cleats as shown in illustration. SHIPPING SCREWS REMOVAL (FOR 30" DOUBLE WALL OVEN WITH UPPER MICROWAVE OVEN ONLY) Shipping screws must be removed as shown in illustration. A 1/4 in. nut driver is needed. INSTALL MOUNTING SCREWS (UPPER MICROWAVE OVEN) Slide the oven the remaining way into the opening so cabinet frame. Make sure that the oven is centered in the opening. Open the door, place a turntable tray in the oven and make sure that the tray in the unit is level. recommended that the screws be hand tightened. 16

17 Owner's Manuals Information Owner s Manuals (available on website) : JK : JT : PT : PT

18 Oven Controls 3800 Series Common Controls Upper Oven Controls 1. : Works as a countdown timer. (hours and minutes or minutes and seconds), use the selector dial to set the time, and press the selector dial to start the timer countdown. The oven will continue to operate when the timer countdown is complete. To turn the timer 2. Settings/Lock Controls: Find oven options for: Help, Clock Settings, Display Mode, Auto Reminder, Temperature Units, Thermostat Adjust and Oven Information under this selection. See the Oven Settings section of this guide for more details. Press and hold the Settings pad for 3 seconds to lock or unlock the controls. This locks out the control so that pressing any of the control pads does not activate the feature. control is locked. 3. Selector Dial: The selector dial is used for both the upper and lower ovens. Rotate dial to select oven settings, upper/lower oven options and selection. Rotate dial to increase or decrease the set temperature or time. 4. Back: Press this pad to go back a menu level in the display. 5. Start/Pause: Press the Start/Pause pad to start any cooking, clean or timed function. Press the Start/Pause pad to pause any upper oven features. 6. Display: Information about both the upper and lower ovens is shown in this display window Microwave: Press the Microwave pad for microwaving options. Use the selector dial to the selector dial to select it. Options available include Cook by Time, Cook, Defrost, Beverage, Popcorn, Melt, Reheat, Simmer and Soften. Use the clear glass tray and microwave-safe cookware when using the microwave features. See the Upper Oven: Microwaving section in this guide for more detail. 8. Add 30 Sec: Press the Add 30 Sec pad for 30 seconds of microwave cooking time. Each time this pad is pressed an additional 30 seconds is added to the remaining cooking time. The oven starts immediately. 9. Defrost: Press the Defrost pad to defrost; rotate selector dial to select the type of defrost and press to select. Types of defrost available include; Defrost by Food Type, Defrost by Time, Defrost by Weight, 1.0 lb. Quick Defrost, Melt, and Soften. See the Microwaving section for more information. 10. Reheat: Press the Reheat pad to reheat; rotate selector dial to select food type to reheat and press to select. Types of food available under the Reheat feature include; Beverage, Casserole, Chicken, Pasta, Pizza, Plate of Food, Rice, Soup, Steaks/Chops, and Vegetables. 11. Popcorn: Press the Popcorn pad to microwave popcorn; press the selector dial to select. Popcorn feature is a microwave sensor feature and automatically senses when popcorn is Features twice in succession on the same food portion. (Continued next page)

19 Oven Controls 3800 Series continued 12. oven programs except the clock and timer. Lower Oven Controls 13. Light: Press the Light pad to turn the oven light the lower oven will not turn on if the oven is in a clean mode. 14. Bake: Press the Bake pad to bake; rotate selector dial to select baking temperature and press to select. 15. Broil: Press the Broil pad to broil; rotate selector dial to select Hi/Lo and press to select. 16. Options: Find the Delay Start, Proof, Sabbath, Self Clean, Steam Clean and Warm features under this selection. See the Oven Options section for more details. 17. Warm: Press the Warm pad to warm; press the selector dial to select. Do not use Warm to cook or heat cold food. See the Lower Oven Cooking Mode section for more information. 18. oven programs except the clock and timer. 19

20 Oven Controls 7800 Series Common Controls 1. : Works as a countdown timer. (hours and minutes or minutes and seconds), use the selector dial to set the time, and press the selector dial to start the timer countdown. The oven will continue to operate when the timer 2. Settings/Lock Controls: Find oven options for: Help, Clock Settings, Display Mode, Auto Reminder, Temperature Units, Thermostat Adjust and Oven Information under this selection. See the Oven Settings section of this guide for more details. Press and hold the Settings pad for 3 seconds to lock or unlock the controls. This locks out the control so that pressing any of the control pads does not activate the feature. is locked. 3. Selector Dial: The selector dial is used for both the upper and lower ovens. Rotate dial to select oven settings, upper/lower oven options and selection. Rotate dial to increase or decrease the set temperature or time. 4. Back: Press this pad to go back a menu level in the display. 5. Start/Pause: Press the Start/Pause pad to start any cooking, clean or timed function. Press the Start/Pause pad to pause any upper oven features. Upper Oven Controls 7. Microwave: Press the Microwave pad for microwaving options. Use the selector dial to the selector dial to select it. Options available include Cook by Time, Cook, Defrost, Beverage, Popcorn, Melt, Reheat, Simmer and Soften. Use the clear glass tray and microwave-safe cookware when using the microwave features. See the Upper Oven: Microwaving section in this guide for more detail. 8. Add 30 Sec: Press the Add 30 Sec pad for 30 seconds of microwave cooking time. Each time this pad is pressed an additional 30 seconds is added to the remaining cooking time. The oven starts immediately. 9. Defrost: Press the Defrost pad to defrost; rotate selector dial to select the type of defrost and press to select. Type of defrost available include: Defrost by Food Type, Defrost by Time, Defrost by Weight, 1.0 lb. Quick Defrost, Melt, and Soften. See the Microwaving section for more information. 10. Convection Bake: Press the Convection Bake pad to convection bake in the upper oven. Place food or oven safe dish on the glass tray when using the convection bake feature. When convection baking on two levels, place food or oven safe dish on the wire oven rack and place them on the glass tray. See the Upper Oven: Baking section of this guide for more detail. 11. Cooking Options: Find the Repeat Last, Proof and Warm features under this selection. See the Oven Options section for more details. 6. Display: Information about both the upper and lower ovens is shown in this display window oven programs except the clock and timer. (Continued next page)

21 Oven Controls 7800 Series continued Lower Oven Controls 13. Light: Press the Light pad to turn the oven light the lower oven will not turn on if the oven is in a clean mode. 14. Bake: Press the Bake pad to bake; rotate selector dial to select baking temperature and press to select. 15. Broil: Press the Broil pad to broil; rotate selector dial to select Hi/Lo and press to select. 16. Options: Find the Delay Start, Probe, Proof, Sabbath, Self Clean, Steam Clean and Warm features under this selection. See the Oven Options section for more details. 17. Convection Bake: Press the Convection Bake pad to convection bake. Convection cook modes use increased air circulation to improve the mode. The lower oven has the following convection cooking modes: Convection Bake (1 Rack/Multi) and Convection Roast. See the Lower Oven Cooking Modes section for more information. 18. oven programs except the clock and timer. 21

22 Oven Controls 9800 Series Common Controls Upper Oven Controls 1. : Works as a countdown timer. (hours and minutes or minutes and seconds), use the selector dial to set the time, and press the selector dial to start the timer countdown. The oven will continue to operate when the timer 2. Settings / Lock Controls: Find oven options for: Help, Clock Settings, Display Mode, Auto Reminder, Temperature Units, Thermostat Adjust and Oven Information under this selection. See the Oven Settings section of this guide for more details. Press and hold the Settings pad for 3 seconds to lock or unlock the controls. This locks out the control so that pressing any of the control pads does not activate the feature. is locked. 3. Selector Dial: The selector dial is used for both the upper and lower ovens. Rotate dial to select oven settings, upper/lower oven options and selection. Rotate dial to increase or decrease the set temperature or time. 4. Back: Press this pad to go back a menu level in the display. 5. Start/Pause: Press the Start/Pause pad to start any cooking, clean or timed function. Press the Start/Pause pad to pause any upper oven features. 6. Display: Information about both the upper and lower ovens is shown in this display window Microwave: Press the Microwave pad for microwaving options. Use the selector dial to the selector dial to select it. Options available include Cook by Time, Cook, Defrost, Beverage, Popcorn, Melt, Reheat, Simmer and Soften. Use the clear glass tray and microwave-safe cookware when using the microwave features. See the Upper Oven: Microwaving section in this guide for more detail. 8. Add 30 Sec: Press the Add 30 Sec pad for 30 seconds of microwave cooking time. Each time this pad is pressed an additional 30 seconds is added to the remaining cooking time. The oven starts immediately. 9. Speedcook: Press the Speedcook pad to access the preset Speedcook menu. Place food or oven-safe dish directly on the metal tray when using the Speedcook feature. Do not use plastic or silicone cookware when using this feature since they could melt or deform. See the Speedcooking section for more detail. 10. Convection Bake: Press the Convection Bake pad to convection bake in the upper oven. Place food or oven safe dish on the metal tray when using the convection bake feature. When convection baking on two levels, place food or oven safe dish on the aluminum baking sheet on the wire oven rack and place them on the metal tray. See Upper Oven: Baking, Broiling and Toasting for more detail. 11. Cooking Options: Find the Repeat Last, Broil, Proof, Toast and Warm features under this selection. See the Oven Options section for more details. (Continued next page)

23 Oven Controls 9800 Series continued 12. oven programs except the clock and timer. Lower Oven Controls 13. Light: Press the Light pad to turn the oven light the lower oven will not turn on if the oven is in a clean mode. 14. Bake: Press the Bake pad to bake; rotate selector dial to select baking temperature and press to select. 15. Broil: Press the Broil pad to broil; rotate selector dial to select Hi/Lo and press to select. 16. Options: Find the Delay Start, Probe, Proof, Sabbath, Self Clean, Steam Clean and Warm features under this selection. See the Oven Options section for more details. 17. Convection Bake: Press the Convection Bake pad to convection bake. Convection cook modes use increased air circulation to improve the mode. The lower oven has the following convection cooking modes: Convection Bake (1 Rack/Multi) and Convection Roast. See the Lower Oven Cooking Modes section for more information. 18. oven programs except the clock and timer. 23

24 Oven Settings Help and its features by pressing the Settings pad and selecting Help. Turn the selector dial and press to NOTE: Not all features of Help may be on the oven model. Below are features found in the Help function: Features found in the Help function. Adding Time Defrost by Weight Start/Pause Auto Conversion Back Bake Beeper Volume Beverage Broil Clock Control Lockout Cook Cook by Food Cook by Time Cook by Time 1 & 2 Cooking Options (Lower) Cooking Options (Upper) Defrost Defrost by Food Defrost by Time Clock Settings Delay Start (Lower) Display Mode Edit Help Melt Micro 30 Secs Microwave My recipes Probe Proof Reheat Reminder Repeat Last Resume Sabbath Self Clean Sensor Cooking Simmer Soften Speedcook Steam Clean Temperature Units Thermostat Adjust Toast Warm Display Mode Use this feature to set Power Saver or Display Always On display mode. Auto Conversion When Auto Conversion is on it will automatically convert the regular baking temperatures entered to convection bake cooking temperatures when using convection bake. This adjusts the temperature in both ovens. Use this feature to activate/deactivate Auto Shut- feature is activated. When in Sabbath mode, Auto Beeper Volume Use this feature to set Beeper Volume to Mute or Normal. Reminder NOTE: Some tones are not mutable. Use this feature to Set, Review, or Clear Reminder. Temperature Units Use this feature to set the display temperature unit to F (Fahrenheit) or C (Celsius). Thermostat Adjust This feature allows the oven baking and convection baking temperature to be adjusted up to 35 F hotter or down to 35 F cooler on the lower oven. The upper oven cannot be adjusted. Use this feature if it is believed that the oven temperature is too hot or too cold and wish to change it. This adjustment Use this feature to set the time of day and to specify how the time of day will be displayed. Select a standard 12-hour clock (12 hr) or 24-hour military the clock must be set. 24

25 Oven Options Upper Oven Options Repeat Last This feature can only be used for upper oven cooking modes. Use this time saving feature for cooking repetitive items like cookies or appetizers. When selecting this feature, the last preset food will be displayed. Select Start/Pause pad or the selector dial to start cooking. Broil NOTE: The last program used is stored for two hours. Not all features can be repeated. Use this feature to broil. Remember to use the metal tray and metal rack. See Upper Oven: Baking, Broiling and Toasting section for more detail. Proof Use this feature to proof bread. See the section of this guide for more detail. Toast Use this feature to toast. Remember to use the metal tray and metal rack. See Upper Oven Baking, Broiling and Toasting section for more detail. Warm Use this feature to warm. Select Moist or Crisp. See the section of this guide for more detail. 25

26 Lower Oven Options Delay Start Use this feature to delay starting a Bake, Convection Bake, Probe, or Self Clean feature. To use this feature select Delay Start and set the time to start, then select cook mode. Use the Delay Start feature while programming a Bake, Convection Bake, or Probe cooking feature. Probe Use this feature to cook by the internal temperature of the food. For many foods, especially roast and poultry, internal food temperature is the best test for doneness. This feature is available for the lower oven only. To use this feature, insert probe into the food. Select Probe, then enter the desired internal food temperature and program the Bake or Convection Bake cooking mode as normal. This feature can also be accessed by connecting the temperature probe into the oven at any time. Proof Use this feature to proof dough. See the Owner's Manual for more information. Sabbath Use this feature to enter Sabbath mode. Sabbath mode sets the oven for observance of the Jewish Sabbath and Holidays. This feature conforms to the Star-K Jewish Sabbath requirements. Sabbath mode disables the oven lights (the oven light will not turn on when the door is opened), all sounds (the control will not beep when a button is pressed, but will still beep if certain oven faults occur), and all upper oven functions and lower oven functions, except lower oven Bake. During Sabbath mode, only lower oven Bake is available. While in Sabbath mode, after setting/changing a bake temperature, a random delay of approximately 30 seconds to 1 minute will occur before the oven will begin baking. To stop cooking, press the Back pad and minute. until Sabbath mode has exited, or Sabbath mode will be re-initialized and will not exit. NOTE: If a power outage occurs during Sabbath mode the unit will remain in Sabbath mode but will no longer be cooking when power is restored. Self Clean Use this feature to enter the Self Clean mode. See the Cleaning The Oven section of the Owner's Manual for more detail. Steam Clean Use this feature to enter the Steam-Clean mode. See the Cleaning The Oven section of the Owner's Manual for more detail. Warm Use this feature to warm. See Owner's Manual for more information. 26

27 Lower Oven Cooking Modes The new oven has a variety of cooking modes to help get the best results. These modes are described below. Refer to the Cooking Guide Baking and Roasting Modes Convection Roast Select a mode for baking and roasting based on the type and quantity of food being prepared. When preparing baked goods such as cakes, cookies, recipe recommendations for food placement. If no guidelines are provided, center the food in the oven. Bake The bake mode is intended for single rack cooking. This mode uses heat primarily from the lower element but also from the upper element to cook food. To use this mode, press the Bake pad, turn the selector dial to set the oven temperature and press to enter, then press Start. Preheating is generally recommended when using this mode. Convection Bake 1 Rack The Convection Bake 1 Rack mode is intended for single rack cooking. This mode uses heat from the lower element and also the upper and rear elements, along with air movement from the convection fan to enhance evenness. The oven is equipped with Auto Recipe Conversion, so it is not necessary to convert the temperature when using this mode. To use this mode, press the Convection Bake pad, turn the selector dial to select 1 Rack and set the oven temperature, and press to enter, then press Start. Preheating is generally recommended when using this mode. Convection Bake Multi Rack The Convection Bake Multi Rack mode is intended for baking on multiple racks at the same time. This mode uses heat primarily from the rear element but also heat from the upper and lower elements, along with air movement from the convection fan to enhance cooking evenness. The oven is equipped with Auto Recipe Conversion, so it is not necessary to convert the temperature when using this mode. Baking time might be slightly longer for multiple racks than what would be expected for a single rack. To use this mode, press the Convection Bake pad, turn the selector dial to select Multi Rack and set the oven temperature and press to enter, then press Start. Always preheat when using this mode. 27 The Convection Roast mode is intended for roasting whole cuts of meat on a single rack. This mode uses heat from the lower, upper, and rear elements along with air movement from the convection fan to improve browning and reduce cooking time. It is not necessary to convert temperature. Check food earlier than the recipe suggested time when using this mode, or use a meat probe. To use this mode, press the Convection Bake pad, turn the selector dial to select Roast and set the oven temperature and press to enter, then press Start. It is not necessary to preheat when using this mode. Broiling Modes Always broil with the door closed. The broil element in this oven is very powerful. Monitor food closely while broiling. Use caution when broiling on upper rack positions as placing food closer to the broil element increases smoking, spattering, and the possibility of fats igniting. Broiling on rack position 6 is not recommended. Try broiling foods that would normally grill. Adjust rack positions to adjust the intensity of the heat to the food. Place foods closer to the broil element when a seared surface and rare interior is desired. Thicker foods and foods that need to be cooked through should be broiled on a rack position farther from the broiler or by using Broil Lo. For best performance, center the food below the broil heating element. Broil Hi The Broil Hi mode uses intense heat from the upper element to sear foods. Use Broil Hi for thinner cuts of meat and/or foods preferred less done on the interior. To use this mode, press the Broil pad, turn the selector dial to Hi and press to enter, and then press Start. It is not necessary to preheat when using this mode. (Continued next page)

28 Broil Lo The Broil Lo mode uses less intense heat from the upper element to cook food thoroughly while also producing surface browning. Use Broil Lo for thicker cuts of meat and/or foods that may be cooked all the way through. To use this mode, press the Broil pad, turn the selector dial to Lo and press to enter, and then press Start. It is not necessary to preheat when using this mode. Proof Proof mode is designed for rising (fermenting and the selector dial to select Proof and press to select, then press Start. Cover dough well to prevent drying out. Bread will rise more rapidly than at room temperature. Note that for double wall ovens, proof cannot be ran when running a clean mode in the lower oven. Warm Warm mode is designed to keep hot foods hot for up to 3 hours. To use this mode, press the Options pad, turn the selector dial to select Warm and press to select, then press Start. Cover foods that need to remain moist and do not cover foods that should be crisp. Preheating is not required. Do not use warm to heat cold food other than crisping crackers, chips or dry cereal. It is also recommended that food not be kept warm for more than 2 hours. 28

29 Sabbath Mode The new oven conforms to the Star-K Jewish Sabbath requirements with the Sabbath mode cooking feature. Details of the Sabbath mode feature are described below. To Enter Sabbath Mode Press the lower oven Options pad and turn the selector dial to Sabbath and press to select. The display will show During Sabbath Mode the upper oven is unavailable. Press the selector dial to continue. Any upper oven features running will exit, and the lower oven will immediately transition into Sabbath mode. To Change Temperature Once in Sabbath mode, in order to change the oven temperature or start a bake feature, the user can change the temperature to one of 10 preset temperatures as indicated below: UI Key Temp. ( F) Left Side Keys (Upper Oven) Microwave 170 F Speedcook/ Defrost 200 F Cooking Options/ 225 F Popcorn Add 30 Sec 250 F Convection Bake/Reheat 300 F Right Side Keys (Lower Oven) Back 0 F Cancels immediately Light 325 F Bake 350 F Broil 375 F Convection Bake/Warm 400 F Options 450 F The Bake feature will start (or if already running, the oven temperature will change) at a random time between seconds after the Start/Pause pad is pressed, with the exception of pressing the Clear/ settings. (The unit will remain in Sabbath mode.) Change of temperature may be executed at any time in the cooking cycle. will stay in Sabbath mode and return to the standby Sabbath display screen. To Exit Sabbath Mode Press and hold the Back pad for 3 seconds. The oven will shut down at a random time between seconds after the Back pad is pressed and held. NOTE: Do not press any other pads during this time, or the Sabbath mode will be re-initialized and will not exit. The oven will exit Sabbath mode and return to its default screen. Changing to one of the above temperatures requires the user to press the keypad associated with the desired temperature and then press the Start/Pause pad. For example, to set a Bake 350 F, the user will press the Bake pad on the lower oven and then press Start/Pause pad. 29 (Continued next page)

30 Sabbath Mode continued Timed Cook Feature In Sabbath Mode The Sabbath mode is not capable of running a timed cook feature on its own. If there is a desire to run a Timed Cook, the following steps must be followed: 1. Use the Settings pad to set the Beeper Volume to Mute. 2. Use the Light pad to set the lower oven light to On. 3. Use the keypanel to program a temperature. After programming a temperature, select a cook time and enter the cook time. Press Start to start the oven. NOTE: Convection Bake should NOT be used. 4. Once the oven is started, do NOT open the reached a steady state temperature. Doing so prior to preheating completing will result in the air distribution fan de-energizing immediately upon door opening. 5. Once food has been placed in the oven, do not open the door until cooking has completed. Doing so will result in the display on the screen changing to a prompt to close the door. NOTES During Sabbath mode, only the lower oven Bake is available. Broil, Convection Bake, Warm, or other functions are not available. When in Sabbath mode, the 12-hour auto selected in the Settings. Sabbath mode can be entered only if no cooking mode is running in the lower oven. Entering the Sabbath Mode will cancel all functions in the lower and upper oven (including timer and reminder). When any buttons are pressed in Sabbath mode, there are no beeps or tones, no changes to lights or change in the display. Also, when the door is opened or closed in Sabbath mode, there are no beeps or tones, no changes to lights or change in the display. If a power outage occurs during Sabbath mode baking, the unit will return to Sabbath mode when the power comes back, but will not return in the baking mode. 6. DO NOT open the upper oven door. Doing so will turn the light on immediately. 7. DO NOT press any additional buttons on the lower oven controls once started or the display will change immediately upon the button press. 30

31 Cool air is drawn into the top grille on the upper oven and discharged at the bottom of the oven. Cool air is also drawn up through the lower oven door, over the top oven, which includes the oven vent discharge, down the back and out through the bottom of lower oven. A typical air pattern of convection and Speedcook upper ovens. The lower oven uses the single speed, one direction motor. Heated oven cavity air is drawn down from the top rear and forced through the middle vents of the convection cover. The motor turns clockwise. 31

32 Speedcook Operation Speedcook Power Levels Advantium uses power from a high-intensity halogen light, ceramic heaters, and microwaves to cook food from the top, bottom, and interior When using preset Speedcook recipes on the food menu, power levels are preselected. However, these power levels can be adjusted before or during cooking. Also, the manual cook feature allows to Speedcook items not on the preset food menu by selecting cook time and power level settings. Each power level alternates heater power and microwave energy throughout the cook time. Percentage times of each power source vary, dependent upon which power level has been selected. The halogen light and ceramic heaters when full power has been selected. UPPER POWER (U) controls both the upper heating assembly and microwave power. A higher UPPER POWER setting will utilize more upper heater power, browning food faster on top. A lower UPPER POWER setting utilizes more microwave power, causing food to cook more evenly throughout. Select a higher setting for such foods as pizza and baked goods. Select a lower setting for foods such as casseroles, LOWER POWER (L) controls the lower heater. Select a higher setting to brown foods more on the bottom. Select a lower setting for less browning on the bottom. Refer to the Speedcook Power Level Chart in percentages. Upper Heaters The upper heating assembly consists of a 500 watt halogen heater and a 700 watt ceramic heater. The halogen and ceramic heaters provide radiant heat, which browns the outside of the food while sealing the Speedcook mode and always cycle on and cycle Lower Heater The lower heater is a 375 watt ceramic heater. It operates in Speedcook, oven/bake, and warm modes. The lower heater assists in browning foods on the bottom. Microwave Energy CAUTION: When cooking in Microwave mode, always use the glass tray. The Advantium provides 975 watts of microwave power, which is delivered directly into the oven cavity to work independently, or in conjunction with other cooking cycles. As the food rotates on the oven turntable, microwave energy is evenly distributed to all portions of the food. Sensor Cooking Advantium s Microwave mode features sensor cooking, which automatically selects cook times and power levels. A humidity sensor detects the increasing humidity released during cooking, senses appropriate time. Sensor cooking is not available for 5 minutes immediately following Speedcook. Voltage Compensation NOTE: Voltage compensation only occurs when using a preselected menu item in Speedcook. These items require compensation for accurate and consistent cooking results. inconsistencies in cooking. The main PCB measures line voltage at the start of each Speedcooking selection and adjusts the cooking time to achieve consistent results. Optimal line voltage, where no voltage compensation occurs, is 120 VAC. Above 120 VAC, time is subtracted from the recipe. Below 120 VAC, time is added to the recipe. The amount of voltage compensation required is dependent upon the incoming voltage at the start of the cooking cycle and the particular Speedcooking selection that is chosen. The convection heater, located at the rear of the oven, operates when using the bake mode. 32 (Continued next page)

33 The following chart shows the predicted compensation times based on a 12 minute Speedcook selection (such as Biscuits, Refr; Large). Voltage Voltage Compensation Chart NOTE: Voltage compensation ± 20 seconds. Voltage compensation occurs after approximately 5 seconds of cooking operation. The display will show display the new adjusted time, based on the amount of voltage compensation required. Voltage compensation only occurs during Speedcook operation and only occurs once during the cooking cycle (at initial start of Speedcook operation). Thermal Protection Time Change (± 20 Sec) Thermal protection is a safety feature built into the Advantium s software. In the event that the internal oven temperature reaches 500 F, the thermistor will communicate this information to the main PCB and thermal protection will be initiated. While in thermal protection mode, cooking cycles will be maintained; however, heaters will not be utilized until the oven reaches the proper operating temperature. Thermal Compensation Voltage Time Change (± 20 Sec) NOTE: Thermal compensation only occurs when using a preselect menu item in Speedcook. These items require compensation for accurate and consistent cooking results. When cooking several food items consecutively, the temperature in the oven may become very high. When Speedcooking, the Advantium automatically compensates for the increased temperature by reducing the amount of time the upper and lower heaters are on during each 32 second duty cycle. At the start of each new Speedcooking operation, the cavity thermistor reads the oven temperature and sends this information to the main PCB board. If the oven temperature is 150 F or higher, the main PCB board will initiate thermal compensation. Thermal compensation will reduce the amount of time the heaters are on in each 32 second duty cycle. The reduction in heater time is based on the oven temperature at the start of Speedcook. The higher the initial cavity temperature, the less time the heaters will be on per duty cycle. Thermal compensation occurs only once, at the beginning of a Speedcook cycle. In the following the initial cavity temperature, the second and third columns list the number of minutes and seconds the unit will have thermal compensation active. Initial Cavity Temp Comp Time Min Comp Time Sec Initial Cavity Temp Comp Time Min Comp Time Sec 150 F F F F F F F F F F F F F 4 47 Upper Power Level Hi Med Hi Med Med Lo Lo Thermal Compensation Chart Speedcook Power Level Chart Lower Power Level Upper Heater On Time Lower Heater On Time Microwave On Time Hi 100% 100% 0% Lo 100% 80% 0% Hi 100% 70% 0% Lo 100% 65% 0% Hi 90% 90% 10% Lo 90% 65% 10% Hi 80% 70% 20% Lo 70% 70% 30% Hi 60% 60% 40% Lo 30% 30% 70% 33

34 Upper Oven Components Door Assembly WARNING: A microwave leakage test must be performed any time a door is removed, replaced, or adjusted for any reason. Door Removal CAUTION: Do not close the door beyond the door removal position. Damage to the inner door panel will occur. To remove the door, open the door fully and insert a door removal tool (Part #: WB01X10364) in each door hinge opening. The door can then be slowly closed a few inches to the door removal position and lifted from the oven. The door assembly comes complete including the door removal tool. Door Removal Position 34 (Continued next page)

35 Control Panel Assembly The control panel assembly consists of an outer control panel and an inner control panel bracket. The outer control panel contains the control, display, selector circuit boards, power and relay circuit boards. Removing the control panel allows access to the oven lamp. 4. Remove the two Phillips head screws that attach the control panel assembly to the side of the frame. The control panel is held in place with nine Phillips head screws and four tabs. Two of the screws are recessed from the top of the outer cover. Access holes are provided. A magnetic screwdriver is necessary to capture these screws. To Remove The Control Panel Assembly 1. Remove the two 1/4 in. screws from the mounting and slide the upper oven out 6 inches. 2. Remove the three Phillips head screws from the top front of the outer cover. 5. Remove the two Phillips head screws that attach the control panel assembly to the front of the frame. 3. Remove the two recessed Phillips head screws that attach the control panel assembly to the top of the frame. 6. Open the oven door. 7. Grasp the bottom of the control panel assembly and lift to release the four tabs that hold the bottom of the control panel assembly to the oven frame. 8. Disconnect wire harnesses from the power board. 9. Disconnect wire harnesses from the relay board. 35

36 Control Boards and Panel Connections Upper Oven Control - Advantium Upper Oven Control - Microwave 36 (Continued next page)

37 Control Boards and Panel Connections continued Power Board CN1: CN5: CN6: CN8: AC Input Humidity sensor Door Secondary Sensing Switch and Damper Door Sensing Switch Thermistor CN11: Relay Board CN15: Lower Oven Communication Signal CN17: Control Board CN18: Control Board 37 (Continued next page)

38 Relay Board CN2: CN3: Connection to Oven lamp, Blower motor, Convection motor, Damper motor and Turntable Motor Control Board CN11: Power Supply Board RY2: RY7: RY8: RY9: High Voltage Transformer (NA)* Convection Heater (RD)* Upper Heater (Ceramic) (BL)* Lower Heater (YL)* RY11: Upper Heater (Halogen) (WH)* RY13: Double Line Break (BK)* ( )* Two letters indicate the color of the connectors going to the relays 38 (Continued next page)

39 Display Board CN1 to Control Board CN10 Keypanel and Encoder Board CON3 to Control Board CN102 CN15 Encoder Board to Control Board CN15 39 (Continued next page)

40 Control Board CN3 To Relay board CN3 CN10 To Display board CN1 CN13 No Connections CN15 To Encoder board CN17 To Power Supply board CN17 CN18 To Power Supply board CN18 CN101 No Connections CN102 To Keypanel CON 3 40 (Continued next page)

41 Power Board Removal 1. Remove the control panel assembly. (See the Control Panel Assembly section of this guide.) 2. Disconnect all wire harnesses from the power board at locations CN1, CN5, CN6, CN8, CN11, CN15, CN17 and CN Remove the four Phillips head screws that attach the power board to the control panel bracket. 4. Lift the power board to clear the retaining tabs. Relay Board Removal 1. Remove the control panel. (See the Control Panel Assembly section of this guide.) 2. Disconnect all wire connectors from the relays Lift the relay board to clear the retaining tabs. 41

42 Removing Upper Oven CAUTION: Upper oven weighs 68 lbs. Use two men or the oven dolly for safe removal. 1. Open the door and remove all trays, racks, or other cooking utensils including the turntable ring. 2. Remove screws from side trims (see Installation section in this Guide). 3. Open and remove the lower oven door. 4. Remove the four Phillips head screws from the decorative middle trim and remove the trim. 5. Remove the four T20 screws from the black vent trim between the upper and lower oven and remove the vent trim. For 30 Models Only: 1. Remove the three 1/4 in. hex head screws from each of the two shipping brackets, remove the shipping brackets. Brackets may be discarded. 2. Remove the two 1/4 in. hex head screws from the front of the sliding brackets under the upper oven. 3. Remove the two 1/4 in. hex head screws from the RJ-45 bracket, disconnect the harness from the RJ-45 board and remove the bracket assembly. 4. Disconnect the three-pin power connector and two-pin communication connector underneath the upper oven. 5. Slowly slide the upper oven out of the cabinet. 42

43 Upper Oven Electrical Components Upper Heater and Oven Cavity TCO's event of excessive temperatures. When replacing, be sure to determine the cause of failure. If a TCO opens, it will disable all oven functions except the oven light. The outer cover must be removed to access the TCO's. (See the Removing Upper Oven section in this guide.) The upper heater TCO is mounted on the heat shield above the upper heater assembly. The oven cavity TCO is mounted to the exhaust duct on the left side of the oven. Lower Heater Assembly The lower ceramic heater has an approximate Lower Heater Assembly Removal 1. Remove the upper oven. (See the Removing Upper Oven section in this guide.) 2. Remove the two Phillips head screws from the bottom of each side of the outer cover. 3. Remove the six Phillips head screws that attach the bottom to the oven. Both TCO's are held in place by a single Phillips head screw. Both TCO's open at 293 F and cannot be reset. Upper Heater TCO 4. Disconnect the bottom heater and turntable wire harnesses. Oven Cavity TCO 5. Straighten the four folded tabs and remove the three Phillips head screws that hold the heater assembly to the oven chassis. Bottom View with Baseplate Removed 43

44 Humidity Sensor The humidity sensor is mounted to the exhaust duct on the left side of the oven. The outer cover must be removed to access the humidity sensor. (See the Removing Upper Oven section in this guide.) The humidity sensor is connected to the power board at location CN5. The humidity sensor is held in place by two Phillips head screws. The humidity sensor detects the increasing humidity released during cooking. The oven automatically adjusts the cooking time to various types and amounts of food. Turntable Motor The turntable motor is held in place with two Phillipshead screws. To replace it requires removing the turntable, turntable support, and the oven. (See the Removing Upper Oven section in this guide.) A single Phillips head screw attaches an access panel to the bottom of the oven. A single wire harness is connected to the turntable motor. NOTE: When replacing the turntable support, ensure it is fully seated into the "D" shaped shaft of the The turntable motor has an approximate resistance Humidity Sensor Test NOTE: The oven should be plugged in at least 5 minutes before test. Room temperature should not exceed 95 F. Be sure that the interior of the oven is dry. No sensor cooking is available for 5 minutes immediately after Speedcook. 1. Access the control panel. 2. Disconnect the humidity sensor wire harness from the power board at location CN5. 3. On the humidity sensor wire harness, check for approximate resistance values between: Black - Red Red - White Black - White 44

45 Convection Heater Assembly and Thermistor The oven must be removed from the cabinet or wall opening to access the convection heater assembly. (See the Removing Upper Oven section in this guide.) The convection heater assembly is composed of an inner and outer fan blade, motor, heating element, and thermistor. Remove the rear cover. Three Phillips head screws hold the cover in place. Upper Heater Assembly The halogen heater has an approximate resistance white wire harness. The ceramic heater has an approximate resistance yellow wire harness. Upper Heater Assembly Removal CAUTION: Mark each of the wire harnesses before disconnecting. If the connectors are interchanged, 1. Remove the oven and remove the outer cover. (See the Removing Upper Oven section in this guide.) 2. Disconnect the heater assembly wire harnesses and pull them through the wire guide. 3. Disconnect wires from the upper heater TCO. Thermistor The thermistor must be removed before removing the convection heater assembly. The thermistor is attached to the convection heater assembly by a single Phillips head screw. The thermistor is connected to the power board at location CN8. The approximate values at room temperature are: Red - Blue = 400k Red - White = 290k Blue - White = 110k 4. Remove the two Phillips head screws, wire retainer, and the heater shield from the heater assembly. Convection Heater Assembly Shown with Rear Cover Removed 45 (Continued next page)

46 5. Straighten the four folded lock tabs. 6. Remove the eight Phillips head screws that Blower Assembly A blower protects the oven from too much heat around the oven cavity. It automatically turns on at low speed if it senses too much heat. The blower will cool. It may stay on for 30 minutes or more after the The blower motor has an approximate resistance 7. Remove the three Phillips head screws that attach the heater assembly to the oven chassis. Blower Assembly Removal 1. Remove the oven from the cabinet or wall opening and remove the outer cover. (See the Removing Upper Oven section in this guide.) 2. Disconnect the blower motor wiring and the oven lamp wire harness. 8. Carefully lift the heater assembly from the oven chassis. 3. Remove the foam seal from the blower bracket. 4. Remove wiring from the guides in the blower bracket and from the retainers on the blower housing. 46 (Continued next page)

47 5. Disconnect wire harnesses on the relay board at locations CN2, RY2. RY7, RY8, RY9, and RY11. Convection Heater Element The convection heater assembly is held in place by two 7 mm hex nuts and 4 Phillips head screws. The convection heater element has an approximate connect the power wires to the element terminals. 6. Remove the single Phillips head screw that chassis. 7. the blower bracket to the oven chassis. 8. Carefully lift the blower assembly from the oven chassis. 9. Remove the six Phillips head screws that hold the blower housing to the bracket. NOTE: When installing the blower assembly, ensure chassis. The convection heater element is held in place by 4 Phillips head screws. (Three screws on the front, and 1 screw on the end.) End View of Element 47

48 Convection Fan Motor The convection fan motor wire leads have locking tabs that must be depressed to be disconnected. To remove each wire from the fan motor, depress the clip using a small blade screwdriver and pull the Damper Assembly The damper assembly is on the top right side of the oven cavity. When the damper door is closed, moisture is retained in the oven cavity. When the damper door is open, moisture is released, allowing food to be more crisp. The damper is open for microwave operation and closed for all other operations. The outer cover must be removed to access or observe operation of the damper assembly. (See the Removing Upper Oven section in this guide.) The outer convection fan must be removed before removing the motor. The outer convection fan is held in place by a 7 mm nut, lockwasher, spacer and The damper assembly is held in place by two pins and three Phillips head screws that attach the damper assembly to the oven chassis. When removing, move the damper assembly inward to disengage the two pins from the vent tube. Front View of Outer Convection Fan The convection fan motor is held in place by Phillips head screws. 48

49 Damper Door Switch The damper door sensing switch is mounted to the damper assembly. The switch monitors the damper door position and provides this information to the main PCB, which controls the operation of the damper door motor. When the damper door is closed, the switch is open. The motor will run until the switch sends the door closed signal. If the damper door sensing switch circuit shorts (or opens), the damper motor will run continually. The damper motor has an approximate Magnetron and Magnetron TCO WARNING: Always be certain the capacitor is discharged before servicing. (See the Capacitor and Diode section in this guide.) Mechanically discharge by placing insulated pliers between the diode connection of the capacitor and the oven chassis ground. NOTE: The capacitor has an internal discharge resistor that automatically discharges the capacitor when the oven turns OFF. Under normal operation, the capacitor should fully discharge within 30 seconds. The oven must be removed to access the magnetron. (See the Removing Upper Oven section in this guide.) The magnetron is located behind the top access cover. The top access cover is held in place by two Phillips head screws. The magnetron is held in place by four Phillips head screws. The magnetron thermostat must be disconnected before removing the magnetron. Damper Door Operating Modes Cooking Mode Damper Position Switch Plunger Position Switch Contacts Microwave Open Not Closed Depressed Speedcook Closed Depressed Open Magnetron TCO The magnetron TCO is attached to a bracket mounted to the magnetron. The magnetron bracket is held in place by a single Phillips head screw. This position of the magnetron TCO allows it to sense the temperature of the magnetron. The magnetron TCO opens at 302 F and cannot be reset. If the magnetron TCO opens, it will disable all oven functions including the display. 49

50 High Voltage Transformer WARNING: Always be certain the capacitor is discharged before servicing. (See the Capacitor and Diode section in this guide.) Mechanically discharge by placing insulated pliers between the diode connection of the capacitor and the oven chassis ground. NOTE: The capacitor has an internal discharge resistor that automatically discharges the capacitor when the oven turns OFF. Under normal operation, the capacitor should fully discharge within 30 seconds. The oven must be removed to access the high voltage transformer. (See the Removing Upper Oven section in this guide.) The high voltage transformer is located behind the top access cover. The top access cover is held in place by two Phillips head screws. Check the high voltage transformer windings for approximate resistance value between: Red to white Red/Black Left and Right Door Switch Assemblies The primary interlock, monitor interlock, and door sensing (secondary interlock) switches are mounted on plastic latch boards. The latch boards are attached to the left and right side of the oven cavity. The left side latch board contains the door sensing (secondary interlock) switch. The right side latch board contains the primary interlock and the monitor interlock switches. The transformer is held in place with four Phillipshead screws. Two of the screws are recessed from the top of the outer cover. Access holes are provided. A magnetic screwdriver is necessary to capture these screws. Right side Latch Board Shown When disconnecting the primary and secondary wire connections, note the wire locations. The wire connectors use releasing locking tabs. 50 (Continued next page)

51 How to Test Primary Interlock and Door Sensing Switches 1. Disconnect power and partially remove the oven from its installation. (See the Removing Upper Oven section in this guide.) 2. Remove the single Phillips head screw that holds each door switch access cover to the outer cover. 3. Remove the primary interlock and door sensing switch leads to isolate each switch. 4. Check continuity of each switch with the door open and the door closed. Normal readings are as follows: Door Closed: 0 W How to Test Interlock System 1. Disconnect power, remove the outer cover (see the Removing Upper Oven section in this guide) and discharge the capacitor. 2. Check 20 amp fuse for continuity and proper size. Do not use any other fuse or size except 20 amps. 3. Remove the monitor switch leads to isolate the switch. Check the continuity of the switch with the door open and the door closed. Door Closed Door Open 4. Reconnect the switch wiring. Door Open How to Test the Monitor Switch NOTE: The right side latch pawl pushes horizontally and actuates the lever of the monitor interlock, opening the switch. 1. Disconnect power and partially remove the oven from its installation. (See the Removing Upper Oven section in this guide.) 2. Remove the single Phillips head screw that holds the right side door switch access cover to the outer cover. 3. Remove the monitor switch leads to isolate the switch. 4. Check continuity of the switch with the door open and the door closed. Normal readings are as follows: Door Closed Door Open: 0 W 51 (Continued next page)

52 Test Circuit Operation 1. Connect temporary jumper leads across relay contacts, primary interlock and door sensing switches to simulate shorted switch contacts. Locate convenient connections in the circuit to be certain COM and NO terminals are used. 2. Connect ohmmeter (Rx1) across the line terminals of the appliance cord. Continuity must show the following: Door Closed Door Open 3. Remove the 20 amp fuse. The circuit must open and interlock circuits. WARNING: After test, remove the temporary jumper leads from the interlock and relay. WARNING: Primary interlock, door sensing switch, monitor switch, and relay board must be replaced when the 20 amp fuse is blown due to operation of monitor switch. Door Switch Replacement 1. Place the oven in a partially removed position. (See the Removing Upper Oven section in this guide.) 2. Open the oven door. 3. Remove the single Phillips head screw that holds the door switch access cover to the outer cover. 4. Disconnect the switch wiring. 5. area of the latch board. 6. Using the mounting pin as a pivot, carefully rotate the switch past the lock tab and remove the switch from the mounting pin. Rotate Switch NOTE: Perform microwave leakage test when replacing or adjusting interlock switches or latch board. How to Adjust the Interlocks The latch board is adjustable for proper door closure and switch operation. 1. Disconnect power and partially remove the oven from its installation. (See the Removing Upper Oven section in this guide.) NOTE: Each latch board is held in place and adjusted with two Phillips head screws. The screws are recessed from the top of the outer cover. Access holes are provided. 2. Loosen the two Phillips head screws that attach the latch board to the oven chassis. 3. Adjust each latch-board for proper door closure and switch operation, retighten screws. NOTE: Perform microwave leakage test when replacing or adjusting interlock switches or latch boards. 52 (Continued next page)

53 Latch Board Replacement 1. Place the oven in a partially removed position. (See the Removing Upper Oven section in this guide.) 2. Open the oven door. 3. Remove the single Phillips head screw that holds the door switch access cover to the outer cover. 4. Disconnect the switch wiring. Noise Filter assembly on the right side of the oven. The noise ground wire is attached to the oven chassis near outer cover must be removed to access the noise Removing Upper Oven section in this guide.) NOTE wiring is connected to the correct terminals. Check to make sure the fuse is good. Check the following locations: White (neutral input) to white (neutral output): 0 W Black (line input) to black/brown (line output): 0 W White (neutral input) to black (line input): 23 W View of Noise Filter NOTE: Each latch board is held in place with two Phillips head screws. The screws are recessed from the top of the outer cover. Access holes are provided. A magnetic screwdriver is necessary to capture these screws. 5. Remove the two Phillips head screws that attach the latch board to the oven chassis. 6. Remove the door switches from the latch board. 53

54 Surge Board The surge board is located behind the blower assembly on the right side of the oven. The board is held in place by a single Phillips head screw. The ground wire is attached to the oven chassis near the magnetron by a single Phillips head screw. The outer cover must be removed to access the noise Removing Upper Oven section in this guide.) View of Surge board Capacitor and Diode WARNING: Always be certain the capacitor is discharged before servicing. Mechanically discharge by placing insulated pliers between the diode connection of the capacitor and the oven chassis ground. NOTE: The capacitor has an internal discharge resistor that automatically discharges the capacitor when the oven turns OFF. Under normal operation, the capacitor should fully discharge within 30 seconds. The oven must be partially removed to access the capacitor. (See the Removing Upper Oven section in this guide.) Check to make sure the fuses are good. Check the board for approximate resistance value at the following locations: White to white White to green If any resistance is measured, replace the surge board. The capacitor is located behind the top access cover and is held in place by two Phillips head screws. A single Phillips head screw attaches the capacitor and diode to the oven chassis. NOTE: When disconnecting the wires and diode from the capacitor, note wire and diode locations. The capacitor wires have locking tabs. Remove the capacitor, capacitor bracket, and diode as one assembly. 54

55 Cavity Light The oven lamp is inserted in a socket that is attached to the lamp housing with two Phillips head screws. The screws are recessed from the top of the outer cover. Access holes are provided. A magnetic screwdriver is necessary to capture these screws. It is necessary to remove the control panel to access the oven lamp. (See the Control Panel Assembly section in this guide.) The oven cavity light will come on during a microwave cooking cycle. Proof Feature Upper oven To test the performance of the proof feature, press the WARM/PROOF pad, then turn the dial to PROOF BREAD and press the dial to start. The following will occur: The convection fan and interior lamp come on immediately, and stay on. There is an immediate start-up burst (about 1.5 second duration at 75 F ambient) of heat from the convection heater. The convection fan and interior lamp continue to operate and, if needed, the convection heater will cycle on. NOTE: Oven proof temperatures range from 75 F - 95 F. At ambient temperatures above 75 F, heat generated by the interior lamp may be heater may not cycle again after start-up. If an inoperative convection heater in the proof mode is suspected: 1. Disconnect power. 2. Remove upper oven. 3. Remove the rear access cover. CAUTION: Do not twist the lamp. 4. Remove the thermistor from the convection heater assembly. 5. Lower the thermistor temperature by placing a chilled or frozen item against the thermistor. 6. Connect power and enter proof mode. 7. Check for approximately 120 VAC (12.3 amps) at the convection heater. 55

56 Microwave Leak Test Standard Test Load The standard test load is one liter (1000 ml) water with a starting temperature of 59 F - 75 F in a 1,000 ml beaker. (DO NOT USE ANY OTHER LOAD OR DISH AS RESULTS WILL VARY FROM STANDARD.) Performance Test for Microwave 1. Use Clear Glass Tray and the beaker (Part #: WB64x0073). 2. Record the initial water temperature. 3. Run at high power for 2: Place 275 ml water in a 600 ml beaker (Part #: WB64x5010). 4. Record the end water temperature. The ending temperature should be: VAC. 2. Place the beaker in the center of the Clear Glass Tray. 3. Set meter to 2450 MHz scale. 4. Turn ON for a 5 minute test. 5. Hold probe perpendicular to the surface being tested. Scan surfaces at the rate of one inch per second. Scan entire perimeter of door, control panel, viewing surface of door window, and exhaust vents. 6. Maximum leakage is 4 MW/CM2. 7. Record data on a service invoice and microwave leakage report. NOTE: Maximum allowable leakage is 5 MW/CM2. Four MW/CM2 is used to allow for measurement and meter accuracy. Inform the manufacturer of any oven found to have emission in excess of 5 MW/CM2. Make repairs to bring the unit into compliance at no cost to the owner and try to determine the cause. Instruct the owner not to use the oven until it has been brought into compliance. 56

57 Demo Mode The Sales Demo mode will allow dealers to demonstrate all oven functionality with one exception: No power is ever applied to any of the halogen lamps, heaters, mag HVT or inrush relays while the control is in sales mode. The Demo mode is accessed by pressing and holding START and BACK at the same time for 3 seconds during power up (this can be done while the Set Clock screen is up). To exit the Demo mode, use the same procedure as entering, by pressing and holding START and BACK at the same time for 3 seconds during power up. 57

58 Schematic Diagram 58

59 Lower Oven Structural Components Oven Door Removal 1. To remove doors on later production models of wall ovens, remove the two T20 Torx screws and the bracket from the left and right vertical braces. Oven Removal Servicing the cooling fan motor, wiring, high limit thermostat, convection motor and bake element mounting screw are only accessible with the oven removed. 1. Disconnect power. 2. Remove the four mounting screws from the side trim. 3. Remove the four upper oven mounting screws. 4. Safely slide the unit onto the oven dolly, or using 2. Move the hinge lock down, and raise the door 59

60 Door Assembly The Door Assembly consists of the outer door glass, liner and hinge assemblies. Door Disassembly 1. Remove the door from the oven. 2. Place the door on a blanket or similar protective item. Handle: After separating the door panels, remove the two 1/4 in. screws that hold the handle onto the outer door assembly. Hinges: After separating the door panels, the hinges can be removed by removing the two T20 Torx screws. Glass pack: With the door panels separated, remove the ten 1/4 in. screws holding the insulation retainer and glass pack in place. 3. Remove the four 1/4 in. screws from the bottom, and the two T20 Torx screws at the top of the door to separate the inner panel. 4. Remove the inner door liner. Location of Hinge Screws Door Reassembly 1. Make sure that the insulation is pressed back under the retainer when reassembling. 2. Reinstall the ten 1/4 in. screws of the insulation retainer. Hinge Assembly 3. Reassemble the door and reinstall the four 1/4 in. screws on the bottom and the two T20 Torx screws at the top. 60

61 Gasket All gaskets attach to oven front frames and are held in place with pins. To replace the oven gasket, start with the lower left corner. Locate the two pins close to the overlap that are about 1 3/4 in. apart. One pin will start on the farthest left bottom hole. The next pin will be the lowest left vertical hole. Continue up and around, Gasket Spacing Vertical Brace The vertical braces support the frame and contain the hinge receivers. Vertical Brace Removal Replacement of vertical brace (SWO left side shown). 1. Remove power to the oven. 2. Remove the door assembly (See the Door Assembly section in this guide for instructions). 3. Remove the upper oven. 4. Safely remove the oven from the installation. Front Frame NOTICE: Except where noted, all screws are 1/4 in. hex head. 5. Remove the six T20 Torx screws from the top front trim. 6. Remove the two T20 Torx screws from the lower front trim. Gasket Reinstallation 7. If replacing the left side brace, remove the two screws from the RJ-45 bracket. 8. Remove the two screws from the brace that secures the microwave slide. 61 (Continued next page)

62 9. Remove the four screws from the side trim. 11. Remove the seven screws from the front of the insulation retainer. 10. Remove the bottom six screws from the base. 12. Remove the two 3/8 in. nuts from the vertical brace. 62 (Continued next page)

63 13. Remove the two screws from the bottom of the base pan. Vertical Brace Reinstallation 1. Reinstall the 3/8 in. nuts on the vertical brace. 2. Reinstall all of the screws, starting with the lower two screws on the base pan. 3. Reinstall the upper and lower trim panels and T20 Torx screws. 4. Reinstall the upper oven. 5. Reinstall all remaining screws. 6. Reinstall the door. 7. Safely reinstall the oven back into the enclosure. 8. Reapply power and check operation. 14. The vertical brace can be removed by slightly pulling the base pan down to allow the brace to clear the lower base assembly. 15. Rotate the brace outwards from under the insulation retainer. 63

64 Lower Oven Electrical Components Rear Component Access Lower Oven Convection Fan Motor The Convection Fan Motor moves heated air throughout the oven cavity. To replace the Convection Fan Motor, begin from inside the oven cavity with the following steps. Convection Fan Motor Removal 1. From inside the oven cavity, remove the four or six T20 Torx screws from the convection cover, and remove the blade by using a 3/8 in. wrench. The threads on the motor shaft are left hand, so turn clockwise to remove. Cooling Fan Motor The cooling fan is used to maintain standard guidelines for external temperature, and preventing components from getting to critical temperatures that may cause premature failure. The fan will operate during any function, and will remain running after the cycle is complete until the oven sensor temperature drops below 170 F. In Self Clean cycles, the motors will run on the high speed windings. Cooling Fan 2. From the rear of the unit, remove the three screws securing the motor to the rear frame. 120 VAC Single Speed Motor Resistance black to white red to white The oven must be removed from the installation for fan motor replacement. Cooling Fan Motor Removal Resistance blue to white NOTICE: If any damage occurs to the blade upon removal, REPLACE the blade as it is critical to proper operation. Convection Fan Motor Reassembly 1. Reinstall the three screws securing the motor to the rear frame. 1. Remove the ten screws on the back panel. 2. Remove the eight screws securing the top cover, fan motor cover. 3. The FAD board mounted to the fan motor assembly must be transferred to a new motor assembly. It is held in place with a single T10 Torx screw. 2. Ensure that all insulation pieces are returned to their original location. 3. Reinstall the blade by using a 3/8 in. wrench. The threads on the motor shaft are left hand, so turn counter-clockwise to tighten. 4. Reinstall the four or six T20 Torx screws to the convection cover. 64

65 Cooling Fan Motor Reinstallation 1. Reinstall the four screws to secure the blower motor assembly to the frame. 2. Reinstall the eight screws securing the top cover fan motor cover. L2 High Limit Switch A safety thermostat is used in the event of a thermal runaway (example: welded relay contacts). It will open the L2 circuit to all the elements. 3. Reinstall the ten screws on the back panel. FAD Board The FAD board replaces the older version of the monitoring cooling fan operation, which was thermally operated. The FAD board is a small sensor that provides speed feedback to the ERC. There are no resistance checks available for this board, only DC voltage checks. Check for DC supply voltage at the upper FAD board. 5 VDC black to white. Blue to white is signal to control. FAD Board Removal Unplug the connector and remove one T10 Torx screw that secures the board to the motor assembly. 65

66 Oven Sensor The Oven Sensor is located on the broil unit mounting plate, and secured with one T20 Torx screw and tab. Pull the connector through the opening in the back wall. This will allow for testing of resistance. Lock Assembly On the latch mechanism, the feedback from the switch to the control signals the board to run the cooling fan on high. The words LOCK DOOR will When the door is locked, LOCKED DOOR will remain illuminated in the display. The CAM on the assembly performs two functions: Positions the lock hook into the door to prevent opening during the Clean operation. Operates the lock switches which tell the control if the door is in the locked or unlocked position. Lock Assembly Diagnostics Sensor F If the lock mechanism fails to activate, check for 120 VAC at the grey/black wire to white on the lock assembly, with the self-clean cycle selected. Lock Assembly Removal 1. Remove the four T20 Torx screws securing the front trim. Two screws will have a rubber door bumper on them. 2. Remove the two 1/4 in. screws securing the lock assembly, and then pull the lock assembly forward. There is enough wire to access for checks. Lock Assembly Reinstallation 1. After verifying good wiring connections, slide the lock assembly back into the opening and secure with two 1/4 in. screws. 2. Reattach the front trim with the T20 Torx screws. The two lower screws will have a rubber door bumper on them. 66

67 Elements Hidden Bake To enhance oven cleanability, and bake element longevity, all wall ovens have hidden bake elements. Hidden Bake (All Ovens) Removal 1. Disconnect power to the oven. 2. Safely remove the oven from the cabinet installation. 3. Remove the rear wire cover. 4. Remove the wires from the bake terminals and the T20 Torx screw securing the bake element to the frame. 8. Remove two T20 Torx screws that secure the hidden bake compartment cover in place. 9. With pliers, grasp the tabs on each side of the screw locations and pull forward. This cover is hooked under the element, so the element will be pulled forward with the cover. The element will have resistance to the pull as it slides through the guides. The second pass of the element may catch on the opening lip, and may need to be lifted with a screwdriver to clear the lip. The wire terminals in the rear may also catch on the frame when pulling through the rear wall. 5. Remove the oven door and remove the two T20 Torx screws on the lower vent trim. 6. Remove the insulation panels. 7. On newer production models the foil covered strip will not be present, and will be replaced with just one piece of uncut insulation. 67

68 Element Reinstallation 1. Be careful that the wire terminals do not catch on the rear of the frame when reinstalling the element. Be sure that the insulation is reassembled to prevent excessive heat leakage. 2. Be sure to clear the lip when reinstalling. The element may have resistance when pushing through as it slides through the guides. 3. Reinstall the two T20 Torx screws that secure the hidden bake compartment cover in place. Broil Broil Elements Removal 1. Remove one T20 Torx screw from the oven sensor, pull the wire through and disconnect. 2. Remove the two T20 Torx screws on the back wall and the two T20 Torx screws from the front support bracket. 3. Pull forward and remove the wires. 4. Reinstall the insulation panels. 5. At the front of the unit, replace the oven door(s) and reinstall the four or six T20 Torx screws (depending on whether the unit is single or double oven, upper or lower). 6. Reinstall the wires from the bake terminals and the T20 Torx screw securing the bake element to the frame. 7. Reinstall the rear wire cover. 8. Safely replace the oven into the cabinet installation. 9. Reconnect power to the oven. Broil Elements Reinstallation 1. Reinstall the wires on the broil element, then insert through the opening and secure. 2. Reinstall the two T20 Torx screws on the back wall and the two T20 Torx screws to the front support bracket. 3. Reconnect the wire harness plug and push through the broil opening and secure with one T20 screw. 68

69 Convection Element The Convection Element provides an additional Convection Element Removal 1. Remove the four T20 Torx screws from the convection cover. 2. Remove the six T20 Torx screws from the rear Convection Element Reinstallation 1. Reinstall the wires and push the element forward. 2. Reinstall the four T20 Torx screws. 3. Reinstall the six T20 Torx screws on the rear 4. Reinstall the four or six T20 Torx screws (depending on model) to the convection cover. 3. Remove the four T20 Torx screws that are securing the element. 4. Pull the element forward and remove the wires. 69

70 Diagnostics Software Versions / Fault Codes Software version can be checked by either: 1. Press and hold START and COOKING OPTIONS (upper oven) for 3 seconds. 2. Press and hold START and POPCORN for 3 seconds. The method varies based on the model. Lower Oven fault codes can be accessed by pressing and holding START and BAKE (lower oven) for 3 seconds. ERC FAULT CODES Description Thermal Runaway First Digit Second Digit Cause That Sets Fault Code 2 0 A climb in oven temperature to above the "Error Unlock Temperature" (EEPROM parameter), while the latch input is false (door is not locked) 2 1 Oven temperature climbs above the "Error Unlock Temperature" (EEPROM parameter), while the latch input is true (door is locked) 2 2 Temperature regulation error Sensor 3 0 Oven RTD Short 3 1 Oven RTD Open 3 4 Meat Probe 4 0 Oven meat probe short Communication 6 0 Communication loss to the Machine Control Error 6 6 Communication loss between Bridge and Machine Control EEPROM 8 0 Oven Parametric data CRC fault or RAM check fail Door Latch 9 0 Oven Door becomes Locked while it is expected to be unlocked (i.e.: during standby or cooking) 9 1 Oven Door becomes Unlocked while it is expected to be locked (i.e.: during self-clean and Steam clean) 9 2 Oven Unlock Home and Lock Home are true simultaneously 9 6 The speed of the fan is below the Min Fan Speed parameter for 30 seconds 9 8 The speed of the fan is below the Min Fan Speed parameter for 30 seconds 70

71 Troubleshooting Lower Oven Mini Manual # (available on website). Dead Unit If Control does not show any display, after verifying the circuit breaker is ON, check for 120 VAC at the black wire on the BROIL relay to the white wire on J102, with wires still connected to board. If 120 VAC is present, Control needs to be replaced. If less than 90 VAC, check voltage from the white wire on J102 to the chassis ground; if 120 VAC, neutral limit switch is open, or house supply voltage is at fault. No Bake No Broil No Convection No Bake, Broil or Convection No Cooling Fan Motor High No Cooling Fan Motor Low No Cavity Lamps No Convection Fan No Lock Motor Bridge Board Communication Error If the Bake element is not energizing, check the resistance on the yellow wire of the bake relay to the orange If the Broil element is not energizing, check the resistance on the purple wire of the broil relay to the orange If the Convection element is not energizing, check the resistance on the blue wire of J803 to the orange If all elements are not energizing, the L2 High Limit Switch is open. All 120 volt components If the Cooling Fan High is not energizing, check the resistance on the black/white wire on J801-3 to the white If the Cooling Fan Low is not energizing, check the resistance on the red/white wire on J801-2 to the white If the Cavity Lamps are not energizing, check the resistance on the black wire on J801-1 to the white If the Convection Fan Motor is not energizing in the clockwise direction, check the resistance on the blue wire on J801-5 to the white wire on J102. Approximately If the Lock Motor is not energizing, check the resistance on the grey/black wire on J801-6 to the white If this error is displayed, check the two wire connector between the ovens and at the Bridge Board. If no problems are found, replace the Bridge Board. 71

72 Accessing Machine Control Board/Bridge Board 1. Remove the four T20 Torx screws from middle cover trim. 2. Remove the four T20 Torx screws from middle trim. 3. Remove the two 1/4 in. screws from lock motor assembly and set assembly aside. 4. Press down on the black plastic tab on top of the frame and slide the board assembly out. There is enough wire lead length to turn boards over to do checks. 72

73 Machine Control Schematic 73

74 Service Mode Advantium Unit Remove any trays (metal or glass) from the upper oven before starting the diagnostic mode, and make sure the door is closed. Removing the trays allows viewing of the turntable coupling operation and the lower ceramic heater. NOTE: All safety components remain active in the service mode. If the lower oven sets a critical fault code, the display shows the fault and shuts down all lower oven functions. After the problem is corrected, the display will return to normal but the fault will have to be cleared. To clear faults on the lower oven, press and hold START and lower oven BAKE for 3 seconds. Fault codes will be displayed. Press CLEAR on keypad or press control knob. To Initiate Service Mode 1. Press and hold the SPEED COOK and MICROWAVE keypads for 3 seconds. 2. To exit service mode, press the CLEAR/OFF pad. The mode will cancel after 2 minutes of inactivity and will return to normal operation mode. Upon entering into service mode, SERVICE MODE is displayed. The upper and lower oven temperatures will also be displayed. Pressing the dial while NEXT is highlighted puts the system into Load Operation mode to test components. Upon starting the diagnostics cycle, the control will set all power levels to High or 10 (i.e.: Upper = High, Lower = High, Microwave = 10). Press the dial to advance; this will advance into the fault summary screen. If no faults are present, it will skip directly to load test. If faults are present it will display up to 7 stored faults. During the test cycle, the display will show which load is to be energized. Faults for the lower oven will have to be cleared in the lower oven fault mode. 74 (Continued next page)