Related Manuals for GE JVM2070 H
Summary of Contents for GE JVM2070 H
- Page 1 GE Consumer & Industrial TECHNICAL SERVICE GUIDE Over the Range Microwave Oven MODEL SERIES: JVM2070_H PUB # 31-9111 2/04...
- Page 2 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.
- Page 3 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.
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Page 4: Table Of Contents
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 .......................... -
Page 5: Nomenclature
Nomenclature Model Number J V M 2 0 7 0 W H Product Model Year J = GE Cooking Product Designator Case Color Microwave Oven S = Stainless V = Over-the-Range Model W = White Installation C = Bisque M = Mounts Under Cabinet B = Black Cavity Size (cu. -
Page 6: Control Features
Control Features • Press TROUBLESHOOTER to find Touchscreen Display troubleshooting tips for common microwave problems. The touchscreen display provides the access to all cook and defrost controls. If the touchscreen is • Press SPACEMAKER 2.0 OVERVIEW to find dark, press the HOME button, the touchscreen, an overview of the features of your or open the door to access the menu. -
Page 7: Component Locator Views
Component Locator Views Top View 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... - Page 8 Right Side View 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) –...
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Page 9: Components
Components Exhaust Fan Microwave Removal and Component Access Resistance through the exhaust fan from the power cord (N) to CN03 pin 7 is approximately Note: Some components can be accessed 28.7 ohms. without removing the microwave. If the 2 end screws on top of the outer cover are accessible Removal ), the hidden vent can be... -
Page 10: Side Stirrer
Side Stirrer Motor Side Stirrer The side stirrer motor is located on the left side of Removal the microwave oven. Open the oven door. Pull the plastic rivet out of the Resistance through the side stirrer motor from stirrer cover. Rotate the stirrer cover CCW until it the power cord (L) to CN04 pin 5 is approximately stops and remove the stirrer cover. -
Page 11: Top Stirrer
Top Stirrer Motor Top Stirrer Resistance through the top stirrer motor from the Removal power cord (L) to CN04 pin 5 is approximately Open the oven door. Pull the plastic rivet out of the 6.7 ohms. Isolated, the top stirrer motor is stirrer cover. -
Page 12: Cooling Fan And Motor
Remove 3 screws from the fan motor mounting Cooling Fan and Motor plate. Slide the mounting plate forward to allow access to the fan blade. Slide the fan blade off of Resistance through the cooling fan motor from the fan motor shaft. the power cord (L) to CN04 pin 7 is approximately 24.7 ohms. -
Page 13: Cavity Thermal Cutout (Tco)
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. -
Page 14: Gas Sensor
Magnetron Transformer The magnetron is located behind the fan mounting The transformer is located behind the fan plate. mounting plate below the magnetron. Removal Resistance through the transformer from the power cord (L) to the high-power secondary WARNING: Prior to servicing the magnetron, be interlock (blue wire) is approximately 0.32 ohms. -
Page 15: Hidden Vent 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 –... -
Page 16: Control Panel
Door Interlock Switches Control Panel The oven has 3 interlock switches. All switches The control panel contains the smart board, the are removed the same. touchscreen panel, and a three-button circuit board. Run the test for the control panel (see Door Sensing and Primary Interlock Switches ). -
Page 17: Primary Interlock System Test
Using a small screwdriver, release the tab and Interlocks (Door Latch Switches) remove the door interlock switch from the door Interlocks are designed as follows: switch bracket. Disconnect the electrical connector. Door Sensing Switch (top) Primary Interlock System Test WARNING: Disconnect the oven from the power supply. -
Page 18: Bottom And Hood Thermal Cutout (Tco)
Remove 2 wires from the TCO. Remove the High Voltage Capacitor screw that holds the TCO in place and slide the tab of the TCO out of the oven frame. Removal and Replacement WARNING: Prior to servicing, be certain the capacitor is discharged. -
Page 19: Surface Lamp Assemblies
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. -
Page 20: Control Performance Test
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. -
Page 21: Demonstration Mode
Error Message Diagnostics Test F1 Convection - Open thermal sensor Simultaneously press the LIGHT and OFF keys F2 Convection - Shorted thermal sensor for 3 seconds. The diagnostics screen will appear in the LCD display. F3 - Keypanel shorted for more than 60 seconds Sample Diagnostics Screen F4 - Open humidity sensor F5 - Shorted humidity sensor... -
Page 22: Microwave Leakage Test
Microwave Leakage Test Performance Test 1. Place 275 ml. of water in a 600 ml beaker 1. Measure the line voltage (loaded). This test is (WB64X5010). based on normal voltage variations of 108V to 132V. Low voltage will lower output power and 2. -
Page 23: Smart Board
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, CN08 and Turntable. -
Page 24: Strip Circuits
Strip Circuits Louver Motor Does Not Work Vent Motor Does Not Work Fan Motor Does Not Work – 24 –... - Page 25 Top Stirrer, Side Stirrer, or Drive Motor Does Not Work FAN MOTOR 120V DRIVE MOTOR Pin 4 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.
- Page 26 Interior Light Does Not Work Surface Lamps Do Not Work – 26 –...
- Page 27 Magnetron Does Not Work Does continuity exist between the HV Replace the primary interlock switch or repair transformer black wire and power cord with faulty wiring between the HV transformer and primary interlock closed (door closed)? the primary interlock switch. Does continuity exist between the HV Replace the HV transformer fuse or transformer blue wire and secondary interlock-2...
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Page 28: Wiring Diagram
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 –... -
Page 29: Schematic
Schematic WARNING: Power must be disconnected before servicing this appliance. Code No. : DE99-00125F – 29 –... -
Page 30: Illustrated Parts Catalog
Illustrated Parts Catalog – 30 –... - Page 31 VIEW NUMBER CATALOG NUMBER DESCRIPTION QUANTITY WB15X10135 HANDLE WH WB55X10673 DOOR-A ASM WB55X10668 DOOR MAIN ASM WB05X10012 DOOR-KEY WB05X10006 SPRING-KEY WB06X10060 PIN-HINGE WB06X10516 FILM-DOOR WB55X10669 CHOKE COVER WB56X10461 DOOR ASM WH WB27X10725 KEY-MODULE WB18X10140 WIRE LEAD-F WB27X10726 SMART BOARD WB07X10730 GRILLE COVER ASM WHT WB01X10246 SPRING-LOUVER...
- Page 32 VIEW NUMBER CATALOG NUMBER DESCRIPTION QUANTITY WB06X10436 HOOD DAMPER ASM WB06X10165 BRACKET-V/T MOTOR WB26X10138 MOTOR-VENTILATION WB56X10446 PLATE MOUNTING ASM WB01X10071 NUT TOP MOUNTING WB06X10122 BRACKET-POWER CORD WB56X10462 CASE OUTER WH WB27X10735 MAGNETRON ASM WB27X10166 TCO - MAGNETRON WB06X10526 BRACKET-MGT WB18X10200 POWER CORD ASM WB01X10119 SCREW-TAPPING...
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Page 33: Warranty
Any part of the oven which fails due to a defect in materials or From the date of the workmanship. During this full one-year warranty, GE will also provide, original purchase free of charge, all labor and in-home service to replace the defective part.