Ge Appliances General Electric Microwave Oven Jvm2070 H Users Manual
31-9111 Ge - Microwave Oven - Otr - Jvm2070 H 31-9111 GE - Microwave Oven - OTR - JVM2070_H 31-9111 GE - Microwave Oven - OTR - JVM2070_H GE, Camco, Hotpoint, Mofat applianceservicesecretsmembership.com_manuals
General Electric Microwave Oven JVM2070_H jvm2070_31-9111_sm
JVM2070_H to the manual fad02203-3b63-4556-99d4-077ad55ca3f3
2015-01-23
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GE Consumer & Industrial TECHNICAL SERVICE GUIDE Over the Range Microwave Oven MODEL SERIES: JVM2070_H PUB # 31-9111 2/04 ! 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 Consumer & Industrial Technical Service Guide Copyright © 2004 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– 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. –3– Table of Contents Bottom and Hood Thermal Cutout (TCO) ....................................................................................................18 Cavity Thermal Cutout (TCO) ......................................................................................................................13 Component Locator Views .......................................................................................................................... 7 Components ................................................................................................................................................ 9 Control Features ......................................................................................................................................... 6 Control Panel .............................................................................................................................................16 Control Performance Test ...........................................................................................................................20 Cooling Fan and Motor ...............................................................................................................................12 Demonstration Mode ..................................................................................................................................21 Diagnostics Test ........................................................................................................................................21 Door Interlock Switches ............................................................................................................................. 16 Exhaust Fan ............................................................................................................................................... 9 Fuses ........................................................................................................................................................ 13 Gas Sensor ................................................................................................................................................14 Hidden Vent Motor .....................................................................................................................................15 High Voltage Capacitor ...............................................................................................................................18 Illustrated Parts Catalog ............................................................................................................................. 30 Interior Light ............................................................................................................................................... 15 Magnetron .................................................................................................................................................. 14 Magnetron Thermal Cutout (TCO) ...............................................................................................................13 Microwave Leakage Test ............................................................................................................................22 Microwave Removal and Component Access .............................................................................................. 9 Nomenclature .............................................................................................................................................. 5 Performance Test .......................................................................................................................................22 Primary Interlock System Test ...................................................................................................................17 Schematic.................................................................................................................................................. 29 Sensor Test (Quick Test) ............................................................................................................................20 Side Stirrer .................................................................................................................................................10 Side Stirrer Motor .......................................................................................................................................10 Smart Board ............................................................................................................................................... 23 Strip Circuits ..............................................................................................................................................24 Surface Lamp Assemblies .......................................................................................................................... 19 Surface Lamps ...........................................................................................................................................19 Top Stirrer ................................................................................................................................................... 11 Top Stirrer Motor ......................................................................................................................................... 11 Touchscreen Display .................................................................................................................................. 6 Transformer ................................................................................................................................................14 Troubleshooting ..........................................................................................................................................20 Turntable Motor ..........................................................................................................................................18 Warranty ....................................................................................................................................................33 Wiring Diagram ..........................................................................................................................................28 –4– Nomenclature Model Number J V M 2 0 7 0 W H Product J = GE Cooking Product Model Year Designator Case Color S = Stainless W = White C = Bisque B = Black Microwave Oven V = Over-the-Range Model Installation M = Mounts Under Cabinet Cavity Size (cu. ft.) 20 = 2.0 cu. ft. Feature Pack Designates features–the higher the number, the more features. The nomenclature plate is located on the microwave cabinet inside the door. In addition to model and serial number, this plate also shows power ratings. The Mini-manual is located behind the hidden vent. Nomenclature Serial Number The first two numbers of the serial number identify the month and year of manufacture. Example: AG123456S = January, 2004 A - JAN D - FEB F - MAR G - APR H - MAY L - JUN M - JUL R - AUG S - SEP T - OCT V - NOV Z - DEC –5– 2005 - H 2004 - G 2003 - F 2002 - D 2001 - A 2000 - Z 1999 - V 1998 - T 1997 - S 1996 - R 1995 - M 1994 - L The letter designating the year repeats every 12 years. Example: T - 1974 T - 1986 T - 1998 Control Features Touchscreen Display The touchscreen display provides the access to all cook and defrost controls. If the touchscreen is dark, press the HOME button, the touchscreen, or open the door to access the menu. • Press TROUBLESHOOTER to find troubleshooting tips for common microwave problems. • Press SPACEMAKER 2.0 OVERVIEW to find an overview of the features of your microwave. OFF WARNING: Pressing OFF does not disconnect the appliance from the power supply. Pressing OFF while on the HOME screen will put the touchscreen into standby mode, and the display will be dark. Press the touchscreen or HOME, or open the door to “wake up” the display. Pressing OFF while on any other screen will cancel the current screen and return the display to the HOME screen. HOME For diagnostics displays, see page 20. HELP Pressing HELP from the HOME screen allows you to locate feature information and helpful hints. HOME returns the display to the HOME screen (displayed) at any time. The HOME screen is the starting point for setting any cooking or defrost program, or for setting microwave options. If the touchscreen is dark, press the HOME button to activate the screen. VENT After pressing HELP: • Press PRODUCT DETAILS to find information concerning your model and serial number. • Press FEATURE HELP to find help locating information on the microwave features. • Press SAFETY GUIDE to find help locating microwave safety information. Press VENT once for high fan speed. Press a second time for medium fan speed, a third time for low fan speed, and a fourth time to turn the fan off. Press BOOST for extra fan speed. BOOST The BOOST button turns the vent fan on HIGH. LIGHT Press LIGHT once for bright light. Press a second time for the night light. Press a third time to turn the light off. –6– Component Locator Views Top View 4 8 5 6 7 9 10 2 1 3 1 - Interior Light 2 - Main and HV Transformer Fuses 3 - Hidden Vent Switch and Motor 4 - Vent Fan and Motor 5 - Top Stirrer Motor 6 - Cavity Thermal Cutout (TCO) 7 - Side Stirrer Motor 8 - Magnetron Antenna Waveguide 9 - Vent Tunnel 10 - Gas Sensor –7– Right Side View 2 1 5 6 4 3 8 7 1 - Magnetron 2 - Magnetron Thermal Cutout (TCO) 3 - High Voltage Transformer 4 - Magnetron Cooling Fan Motor and Blade 5 - High Voltage Capacitor 6 - Door Sensing Switch (Primary Interlock and Monitor Switch in plastic mount - not shown) 7 - Bottom Thermal Cutout (TCO) 8 - Hood Thermal Cutout (TCO) –8– Components Exhaust Fan Microwave Removal and Component Access Note: Some components can be accessed without removing the microwave. If the 2 end screws on top of the outer cover are accessible (see illustration below), the hidden vent can be removed without removing the microwave from its installation. Note: For easier removal and personal safety, it is recommended that 2 people remove the microwave. Resistance through the exhaust fan from the power cord (N) to CN03 pin 7 is approximately 28.7 ohms. Removal Remove the microwave (see Microwave Removal and Component Access). Remove the screw on top of the microwave holding the exhaust adapter in place, then slide the exhaust adapter to the rear and remove. Top View Unplug the microwave and remove it from the wall by removing three screws in the cabinet above the microwave. Remove the screw holding the fan in place. Tilt the microwave forward and lift it off the lower tabs of the rear mounting plate. Route the power cord through the hole. Lift the fan out of the microwave and disconnect the electrical connector. Place the microwave on a protected counter or table. To remove the cover, remove 2 screws from the left side, 3 screws from the right side, 5 screws from the top, 5 screws from the rear, and 2 screws from the bottom of the outer cover. Disconnect Open the microwave oven door. Slide the hidden vent to the left and remove the hidden vent. –9– Side Stirrer Motor Side Stirrer The side stirrer motor is located on the left side of the microwave oven. Resistance through the side stirrer motor from the power cord (L) to CN04 pin 5 is approximately 6.7 ohms. Isolated, the side stirrer motor is approximately 7.0 ohms. The door (primary interlock) must be closed to complete circuit. Check motor circuit for 21 VAC when operating. Removal Open the oven door. Pull the plastic rivet out of the stirrer cover. Rotate the stirrer cover CCW until it stops and remove the stirrer cover. Rivet Removal Remove the microwave (see Microwave Removal and Component Access). Remove the stirrer. Disconnect the wire connector to the side stirrer motor. Remove the screw and turn the motor 1/8 turn CCW. Note: When installing stirrer motor, be sure the locating pin is inserted in the motor mounting tab and the side stirrer is resting on the support in the cover prior to installing the screw. Stirrer Screw Disconnect Note: When assembling, assure that the stirrer rides on the support in the cover. – 10 – Top Stirrer Motor Top Stirrer Resistance through the top stirrer motor from the power cord (L) to CN04 pin 5 is approximately 6.7 ohms. Isolated, the top stirrer motor is approximately 7.0 ohms. The door (primary interlock) must be closed to complete circuit. Check motor circuit for 21 VAC when operating. Removal Open the oven door. Pull the plastic rivet out of the stirrer cover. Rotate the stirrer cover CCW until it stops and remove the stirrer cover. Rivet Removal Remove the microwave (see Microwave Removal and Component Access). Disconnect the side stirrer motor electrical connector. Remove 2 screws and ground wire from the duct and move the duct out of the way. Remove the stirrer. Note: When assembling, assure that the stirrer rides on the support in the cover. Disconnect the electrical connector from the motor. Remove 2 screws that hold the motor in place and remove the motor. Disconnect – 11 – Cooling Fan and Motor Resistance through the cooling fan motor from the power cord (L) to CN04 pin 7 is approximately 24.7 ohms. The door (primary interlock) must be closed to complete circuit. Remove 3 screws from the fan motor mounting plate. Slide the mounting plate forward to allow access to the fan blade. Slide the fan blade off of the fan motor shaft. The cooling fan motor, in series with the drive motors, provides voltage reduction to 21 VAC. Removal Remove the microwave (see Microwave Removal and Component Access). Remove the screw at the top of the control panel. Slide the control panel up and remove it. Disconnect 8 electrical connectors and the ground wire from the control panel. Remove 2 screws from the fan motor. Move the TCO out of the way. Disconnect the power transformer. Remove the fan motor from the fan mounting plate and remove the 2 wires. – 12 – Cavity Thermal Cutout (TCO) The cavity TCO is located on the top of the microwave oven on the left side of the forward vent duct. The microwave oven shuts off when the temperature of the cavityTCO reaches 212°F (100°C). The cavity TCO is a normally closed switch. An open reading across the TCO indicates an overtemperature condition or failed TCO. The cavity TCO is not resettable. Removal Remove the microwave (see Microwave Removal and Component Access). Slide the cavity TCO from the two tabs and remove the 2 connectors. Fuses The main and high voltage transformer fuses are located behind the hidden vent, above the control panel. Removal Remove the hidden vent (see Microwave Removal and Component Access). Cavity TCO Remove the grille to access the fuses. Magnetron Thermal Cutout (TCO) The magnetron TCO is located on the magnetron and shuts off when the magnetron temperature reaches 150°F (65.5°C). The magnetron TCO is a normally closed switch. An open reading across the TCO indicates a failed TCO. The magnetron TCO is resetable Removal Remove the microwave (see Microwave Removal and Component Access). Disconnect the 2 wires and remove the screws from the magnetron TCO. – 13 – Magnetron Transformer The magnetron is located behind the fan mounting plate. The transformer is located behind the fan mounting plate below the magnetron. Removal Resistance through the transformer from the power cord (L) to the high-power secondary interlock (blue wire) is approximately 0.32 ohms. The door (primary and monitor interlock) must be closed. WARNING: Prior to servicing the magnetron, be certain the capacitor is discharged. Manually discharge by placing an insulated-handle screwdriver between the diode connection of the capacitor and the oven chassis ground. Remove the microwave (see Microwave Removal and Component Access). Remove the TCO and the magnetron electrical connectors. Remove 4 nuts from the top of the magnetron and remove the screw and brace. Remove the magnetron. Resistance through the transformer from the high-power secondary interlock (blue wire) to the low-power secondary interlock (single white wire) is approximately 28.7 ohms. The door (monitor interlock) must be closed. Removal WARNING: Prior to servicing the transformer, be certain the capacitor is discharged. Manually discharge by placing an insulated-handle screwdriver between the diode connection of the capacitor and the oven chassis ground. Remove the microwave (see Microwave Removal and Component Access). Remove the screws and the bottom panel. Disconnect electrical connectors. Remove the white and red wires from the capacitor and the red wires from the magnetron. Caution: The transformer is heavy. Remove 4 screws from the bottom that hold the transformer in place. Gas Sensor The gas sensor detects humidity changes during sensor cook functions and transmits this information to the main board. The gas sensor is located in the air exhaust duct, behind the grille on the left side. To check, run diagnostics (see Diagnostics Test). Removal Remove the hidden vent (see Microwave Removal and Component Access). Slide white plastic retainer forward and pull the gas sensor down. Gas Sensor – 14 – Interior Light Hidden Vent Motor Resistance through the interior light from the CN02 pin 7 to the power cord (L) is approximately 24.9 ohms. The hidden vent motor is located behind the hidden vent on the right side. Resistance through the hidden vent motor from the CN03 pin 1 to the power cord (N) is approximately 28.8 ohms. Removal Removal Note: This component may be able to be accessed without removing the microwave. If the 2 end screws on top of the outer cover are accessible, the hidden vent can be removed without removing the microwave from its installation. Remove the hidden vent (see Microwave Removal and Component Access). Remove 2 screws and Note: This component may be able to be accessed without removing the microwave. If the 2 end screws on top of the outer cover are accessible, the hidden vent can be removed without removing the microwave from its installation. Remove the hidden vent (see Microwave Removal and Component Access). Press the tab with a small screwdriver and lift the interior light cover up and out. the motor. Squeeze the 2 tabs of the light socket and remove the light assembly. Note: When installing a new halogen bulb, be sure to handle the bulb with a clean, dry cloth. Replace the halogen lamp with a 120VAC, 20W GE halogen lamp bulb (WB36X10213). – 15 – Door Interlock Switches Control Panel The oven has 3 interlock switches. All switches are removed the same. The control panel contains the smart board, the touchscreen panel, and a three-button circuit board. Run the test for the control panel (see Control Performance Test). The control panel is replaced as an assembly. Door Sensing and Primary Interlock Switches Removal Remove the hidden vent (see Microwave Removal and Component Access). Remove the grille. Lift up on the control panel and remove. The primary interlock and monitor switches are located on the bottom of the plastic switch bracket. The power relay is mounted on the smart board. They are activated by the latch heads on the door. When the door is opened, the switches interrupt the circuit to all components, except the oven lamp. A cook cycle cannot take place until the door is firmly closed, thereby activating both interlock switches. The primary interlock system consists of the door sensing switch, primary interlock switch, and power relay. Monitor Switch Disconnect 8 electrical connectors and the ground wire from the control panel. The monitor switch is operated indirectly by the bottom latch pawl. The pawl operates a cam switch, which in turn, activates the monitor switch. The switch is intended to render the oven inoperative by means of blowing the monitor fuse when the contacts of the primary interlock switch and power relay fail to open when door is opened. Functions When the door is opened, the monitor switch contact closes. At this time, the primary interlock switch and power relay are in the closed position. As the door goes to a closed position, the monitor switch contacts are first opened and then the door sensing switch and the primary interlock switch contacts close.The oven has 3 interlock switches. All switches are removed the same. Removal Remove the hidden vent (see Microwave Removal and Component Access). Remove the grill. Lift up the control panel and remove. Remove the 2 T20 Torx screws from the front of the frame and remove the door switch bracket. – 16 – Using a small screwdriver, release the tab and remove the door interlock switch from the door switch bracket. Disconnect the electrical connector. Interlocks (Door Latch Switches) Interlocks are designed as follows: Door Sensing Switch (top) Primary Interlock System Test WARNING: Disconnect the oven from the power supply. Door Sensing Switch Isolate the switch and connect the ohmmeter to the common (COM.) and normally open (NO) terminal of the switch. The meter should indicate an open circuit with the door open and a closed circuit with the door closed. Monitor Interlock Switch (middle) Power Relay Disconnect 2 wires from the tab terminals on the circuit board provided in the control panel assembly. The tab terminals are located in the area of the circuit board on the component side, and are connected to the contacts of the power relay. Check the state of the relay contacts using an ohmmeter. The relay contacts should be open. If the relay contacts are closed, replace the circuit board. Primary Interlock Switch (bottom) Door Sensing Switch: • Door Closed - 0 ohms Primary Interlock Switch Test • Door Open - Infinite ohms Isolate the switch and connect the ohmmeter to the common (COM.) and normally open (NO) terminal of the switch. The meter should indicate an open circuit with the door open and a closed circuit with the door closed. If improper operation is indicated, replace the primary interlock switch. Monitor Interlock Switch: • Door Closed - Infinite ohms • Door Open - 0 ohms Primary Interlock Switch: Note: The primary interlock switches are not adjustable and must be replaced if test is failed. • Door Closed - 0 ohms • Door Open - Infinite ohms Note: Remove the wires from the switches before checking continuity. – 17 – Remove 2 wires from the TCO. Remove the screw that holds the TCO in place and slide the tab of the TCO out of the oven frame. High Voltage Capacitor Removal and Replacement WARNING: Prior to servicing, be certain the capacitor is discharged. Manually discharge by placing an insulated-handle screwdriver between the diode connection of the capacitor and the oven chassis ground. Hood TCO Bottom TCO Remove the hidden vent (see Microwave Removal and Component Access). Remove the screw and grill. Lift the control panel up and remove. Remove the screw from the capacitor brace. Disconnect 3 wires from the capacitor. Remove the capacitor and brace from the oven. Turntable Motor Resistance through the turntable motor from the CN02 pin 4 to the power cord (L) is approximately 158.5 ohms. The door (primary and monitor interlock) must be closed. Removal Remove 5 screws from the bottom of the microwave oven cabinet and remove the bottom plate. Remove the capacitor from the capacitor brace. Bottom and Hood Thermal Cutout (TCO) The bottom TCO will interrupt the operation of the oven when it reaches 248°F (120°C). The hood TCO is a normally open switch. When it reaches 158°F (70°C), the vent motor turns on. Remove the screw, then rotate the motor CCW 1/ 8 turn. Remove the turntable motor. Disconnect 2 wires from the motor. Removal procedures are the same for both TCOs. Removal and Replacement Remove the hidden vent (see Microwave Removal and Component Access). Remove the screw and the grill (see Hidden Vent Motor). Lift the control panel up and remove. – 18 – Screw Disconnect Surface Lamps Surface Lamp Assemblies Resistance through the surface lamps from the CN04 pin 3 to the power cord (N) is approximately 62 ohms. Removal Remove the screw on the surface lens panel and open the panel. Removal Remove 5 screws from the bottom of the microwave oven cabinet and remove the bottom plate. Pull the light out of the socket. Note: When installing a new halogen bulb, be sure to handle the bulb with a clean, dry cloth. Replace the halogen lamp with a 120VAC, 20W GE halogen lamp bulb (WB36X10213). Remove the screw from each lamp socket and remove the lamp assembly from the oven. Disconnect the electrical connector. – 19 – Troubleshooting Control Performance Test Set Time: 1. Touch OPTIONS on the HOME display. 2. Touch SET CLOCK on the OPTIONS display. 3. Using the numbers on the touchscreen, enter the time of day. Press ENTER when finished or CLEAR to erase the time you entered. 4. Select AM or PM from the touchscreen. Press ENTER when finished or BACK to enter a new time. • Alternately touch each function pad and enter time, temperature, and power level selection for the function. • Touch CLEAR after each function test to clear that function. • Repeat the procedure for each function to exercise each pad. • Control and display should respond to each entry. • Sensor Test (Quick Test) Display should revert to Time-Of-Day after each CLEAR. Press and hold the OFF and LIGHT buttons for 3 seconds. Note diagnostic number displayed. 15 to 185 = Normal 213 or higher = Sensor failed to open, sensor unplugged, wiring, or smart board. Less than 6 = Shorted sensor or smart board. Caution: Do NOT check the white and orange sensor leads. Checking could damage sensor. Note: Black and red heater terminal leads should read 30 Ω. – 20 – Error Message Diagnostics Test Simultaneously press the LIGHT and OFF keys for 3 seconds. The diagnostics screen will appear in the LCD display. Sample Diagnostics Screen F1 Convection - Open thermal sensor F2 Convection - Shorted thermal sensor F3 - Keypanel shorted for more than 60 seconds F4 - Open humidity sensor F5 - Shorted humidity sensor F10 - Shorted touch panel Note: Any “F” code will cause an error sound to beep for 3 cycles. One cycle will sound 2 seconds on, 1 second off. Sample “F” Code page Displayed Information • MODEL - Identified at power-up by the keytail ID option. • CODE VERSION - The date the code file was sent to GEA for testing (MM-DD-YY). • HUMIDITY SENSOR - The CUR (current), DET (detection point), MIN (minimum), MAX (maximum) humidity sensor data will update continuously. The CUR value is the present A/D value of the sensor. DET is the value at the moment the humidity detection point was reached. MIN is the lowest humidity point measured during entire feature’s run. MAX is the highest humidity value measured during the feature’s run. These data points are the dynamic measurements of the sensor, not the calculated values. Demonstration Mode In demonstration mode, everything will operate on the unit except the high voltage section. Pressing the DONE key terminates the diagnostic screen. The screen returns to the previous or HOME screen. The diagnostic screen will timeout and return to the previous screen after receiving no input for 5 minutes. To enter the demonstration mode, disconnect the power for 30 seconds then reapply power. Simultaneously press the HELP screen pad and the BOOST button for 3 seconds. The word DEMO will appear in the LCD display. To exit the demonstration mode, disconnect the power for 30 seconds then reapply power. – 21 – Microwave Leakage Test Performance Test 1. Place 275 ml. of water in a 600 ml beaker (WB64X5010). 1. Measure the line voltage (loaded). This test is based on normal voltage variations of 108V to 132V. Low voltage will lower output power and temperature rise. 2. Place the beaker in the center of the oven shelf. 2. Place a beaker (WB64X0073) containing 1 liter of water (1000ml, 59°F - 75°F) on the turntable and record the starting water temperature with a thermometer. (Do not use any other load or dish as results will very from standard). 3. Set the meter to the 2450 MHz scale. 4. Turn the oven on for 5 minutes. 5. Hold the probe perpendicular to the surface being tested and scan the surfaces at a rate of 1 inch/sec. 3. Set the microwave oven at HIGH power for 2 minutes and 3 seconds. Test the following areas: • The entire perimeter of the door and control panel. • The viewing surface of the door window. • The exhaust vents. 4. Turn on the oven. 5. Record the water temperature. The minimum difference between the initial and ending temperature should be 40°F at 120V. 6. The maximum leakage is 4 MW/CM2. 7. Record data on the service invoice and microwave leakage report. Note: The maximum allowable leakage is 5 MW/ CM2. 4 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 if it has not been brought into compliance. High Voltage Capacitor The high voltage capacitor has an internal shunt resistor to automatically discharge the capacitor when the oven turns off. Under normal operation, the capacitor should fully discharge within 30 seconds. – 22 – Smart Board The smart board contains the power relay, LVT, vent blower triac, surface light relays, and other components to perform the proper switching circuits. Several disconnect plugs are also located on the smart board. CN01 - Ribbon connector. Interfaces the smart board and the touch pad. CN02 - Primary LTV, Main Relay, Inrush Relay, and Turntable. Interfaces the smart board and the key module. CN08 CN06 CN03 - Vent Blower Connector Hood TCO Pin 1 AZU-1 Hood TCO Pin 3 VIL-1 Main Fuse Pin 5 GRA-1 Louver Motor Pin 7 BRN-1 CN07 CN04 - Cooktop Lamp Relay Connector Pin 4 ORG-1 Turntable Motor Pin 5 PIN-1 Fan Motor Pin 7 WHT-9 Fan Motor Oven Lamp Pin 9 BLK-7 CN05 Pin 1 BLU-2 Pin 3 YEL-1 CN01 Cooktop Lamps Cooktop Lamps CN03 CN06 - Door Sensing Connector Pin 1 ORG Door Sense Switch Pin 2 ORG Door Sense Switch CN07 - Louver Motor Switches Connector Pin 1 YEL Louver Switch Pin 2 BLU Louver Switch Pin 3 RED Louver Switch Low-Power Secondary Interlock CN05 CN08 - Gas Sensing Connector Pin 1 ORG Gas Sensor Pin 2 WHT Gas Sensor Pin 3 BLK Gas Sensor Pin 4 RED Gas Sensor High-Power Secondary Interlock CN04 CN02 Low-Power Secondary Interlock To High Power Interlock WHT/WHT Cooktop Lamps WHT/WHT HV Transformer WHT High-Power Secondary Interlock To Low Power Interlock WHT/WHT Power Cord N WHT/WHT HV Transformer Fuse WHT – 23 – Strip Circuits Louver Motor Does Not Work Vent Motor Does Not Work Fan Motor Does Not Work – 24 – Top Stirrer, Side Stirrer, or Drive Motor Does Not Work FAN MOTOR BLK PIN FM 120V 0V DRIVE MOTOR ORG BLK DM Pin 4 21V Dead Unit - Cavity or Magnetron TCO Does Not Work Note: The Magnetron Tube TCO automatically resets when the conditions return to normal. The Cavity TCO is not resetable. It must be replaced. Dead Unit - Bottom TCO Does Not Work Note: The Bottom TCO is not resetable. It must be replaced. – 25 – Interior Light Does Not Work Surface Lamps Do Not Work – 26 – Magnetron Does Not Work Does continuity exist between the HV transformer black wire and power cord with primary interlock closed (door closed)? No Replace the primary interlock switch or repair faulty wiring between the HV transformer and the primary interlock switch. Yes Does continuity exist between the HV transformer blue wire and secondary interlock-2 blue wire thru HV transformer fuse? No Replace the HV transformer fuse or repair faulty wiring. Yes Does continuity exist between the secondary interlock-2 blue wire and power cord? No Repair faulty wiring. No Repair faulty wiring. Yes Does continuity exist between the HV transformer white wire to power cord thru secondary interlock - 1 (door closed) and monitor interlock switch open (door closed)? Yes Replace the main control board. Does the magnetron work? 1 No 1 - Red 2 2 - White Replace the HV capacitor. Does the magnetron work? 3 - Blue 4 - Black No Replace the HV transformer. Does the magnetron work? 2 3 No 4 Replace the magnetron. – 27 – Wiring Diagram WARNING: Power must be disconnected before servicing this appliance. Note: For servicing replacement use 16GA. 105°C thermoplastic covered leads or as noted on special leads. – 28 – Schematic WARNING: Power must be disconnected before servicing this appliance. Code No. : DE99-00125F – 29 – Illustrated Parts Catalog – 30 – VIEW NUMBER 1 5 6 7 8 9 10 11 12 17 20 21 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 41 42 48 49 50 51 54 55 56 57 58 59 60 62 63 64 65 66 67 69 70 71 72 74 75 76 77 78 CATALOG NUMBER WB15X10135 WB55X10673 WB55X10668 WB05X10012 WB05X10006 WB06X10060 WB06X10516 WB55X10669 WB56X10461 WB27X10725 WB18X10140 WB27X10726 WB07X10730 WB01X10246 WB02X10970 WB02X10967 WB02X10968 WB02X10969 WB07X10724 WB36X10273 WB06X10450 WB36X10213 WB06X10517 WB08X10026 WB56X10450 WB36X10071 WB36X10217 WB06X10126 WB06X10518 WB06X10519 WB06X10520 WB06X10521 WB06X10522 WB06X10523 WB26X10136 WB06X10524 WB01X10065 WB26X10037 WB27X10195 WB26X10137 WB27X10170 WB24X10070 WB24X10069 WB06X10283 WB38X10057 WB26X10112 WB07X10442 WB18X10122 WB06X10525 WB08X10027 WB36X10260 WB02X10955 WB18X10241 WB27X1170 WB06X0549 DESCRIPTION HANDLE WH DOOR-A ASM DOOR MAIN ASM DOOR-KEY SPRING-KEY PIN-HINGE FILM-DOOR CHOKE COVER DOOR ASM WH KEY-MODULE WIRE LEAD-F SMART BOARD GRILLE COVER ASM WHT SPRING-LOUVER EARTH-GRILLE "A" HINGE-GRILLE "R" HINGE-GRILLE "M" HINGE-GRILLE "L" GRILLE WH GRILLE ASM WHT BRACKET-BOTTOM LAMP BULB HALOGEN (120V 20W) BRACKET-ENCLOSURE SOCKET LAMP BASE BOTTOM SUB ASM GLASS-COOKTOP LAMP COVER-GLASS BUTTON-LOCK COVER-STIRRER(TOP) STIRRER(TOP) ASM COUPLER-TT HOLDER-RACK COVER-STIRRER(SIDE) STIRRER(SIDE) ASM MOTOR TURNTABLE COVER-FRONT NUT MAGNETRON MOTOR STIRRER TCO CAVITY MOTOR-DRIVE(SIDE) CAPACITOR-MOTOR SWITCH-MICRO SWITCH-MICRO BRACKET-CAM PLATE CAM-LOUVER MOTOR-DRIVE CAM LOUVER ASS'Y WIRE GRND PCB COVER-HALOGEN LAMP SOCKET HAL/LAMP ASM FRAME GLASS HOLDER BKT-BARRIER WIRE HARNESS-S GAS SENSOR HOLDER-SENSOR – 31 – QUANTITY 1 1 1 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 2 1 1 1 8 1 1 1 1 4 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 VIEW NUMBER 81 82 83 84 85 86 87 88 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 122 123 124 125 126 127 128 129 130 9999 9999 9999 9999 9999 CATALOG NUMBER WB06X10436 WB06X10165 WB26X10138 WB56X10446 WB01X10071 WB06X10122 WB56X10462 WB27X10735 WB27X10166 WB06X10526 WB18X10200 WB01X10119 WB06X10289 WB24X0829 WB24X0830 WB06X10128 WB18X10055 WB06X10527 WB06X10463 WB27X10474 WB06X10528 WB26X10090 WB27X10194 WB26X10089 WB27X10011 WB06X10287 WB27X1160 WB26X10139 WB27X10724 WB27X1127 WB56X10448 WB01X10084 WB06X10529 WB49X10063 WB01X10181 WB02X10956 WB48X10038 WB01X10183 49-40335 WB18X10235 WB18X10232 WB06X10288 WB01X0861 WB07X10734 31-40025 49-40137-1 49-40239-1 49-40329 49-40330 DESCRIPTION HOOD DAMPER ASM BRACKET-V/T MOTOR MOTOR-VENTILATION PLATE MOUNTING ASM NUT TOP MOUNTING BRACKET-POWER CORD CASE OUTER WH MAGNETRON ASM TCO - MAGNETRON BRACKET-MGT POWER CORD ASM SCREW-TAPPING LATCH-BODY SWITCH-MICRO SWITCH-MICRO LEVER-SWITCH LOWER WIRE HARNESS-B COVER MOTOR SUB ASM FUSE-HOLDER FUSE SUPPORTER-CAVITY BLADE-FAN TCO HOOD MOTOR-FAN CAPACITOR BRACKET-HVC H.V. DIODE DUCT REAR ASM TRANS-H.V TCO -BOTTOM BASE-PLATE SCREW-WASHER HVT ROLLER GUIDE RING TRAY-COOKING HARDWARE INSTALLATION CHARCOAL FILTER-OPTIONAL RACK WIRE ASM HARDWARE BAG LABEL-COOKING GUIDE WIRE HARNESS-A WIRE HARNESS-C FILTER GREASE SCREW,DOOR BRKT-BOTTOM CTRL PANEL SUB ASM WHT MINI-MANUAL TEMPLATE-TOP REAR WALL TEMPLATE USE & CARE INSTALLATION INSTRUCTION – 32 – QUANTITY 1 1 1 1 1 1 1 1 1 1 1 2 1 2 1 1 1 1 2 2 1 1 1 1 1 1 1 1 1 1 1 4 1 1 1 1 2 1 1 1 1 2 2 1 1 1 1 1 1 Warranty OTR MICROWAVE OVEN WARRANTY For the period of: GE will replace: Full one-year From the date of the original purchase Entire oven Any part of the oven which fails due to a defect in materials or workmanship. During this full one-year warranty, GE will also provide, free of charge, all labor and in-home service to replace the defective part. Limited ten-year Magnetron tube From the second through the tenth year from the date of the original purchase The magnetron tube, if the magnetron tube fails due to a defect in materials or workmanship. During the additional limited nine-year warranty, you will be responsible for any labor or in-home service costs. What GE will not cover • Service trips to your home to teach you how to use the product. • Replacement of home fuses or resetting of circuit breakers. • Incidental or consequential damage caused by possible defects with this appliance. • Damage to the product caused by accident, fire, floods, or acts of God. • Failure of the product if it is used for other than its intended purpose or used commercially. • Improper installation. This warranty is extended to the original purchaser and any succeeding owner for products purchased for home use within the USA. 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, so the above limitation or exclusion may not apply to you. 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 in your state, consult your local or state consumer affairs office or your state’s Attorney General. Warrantor: General Electric Company, Louisville, KY 40225 – 33 –
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