Related Manuals for Whirlpool GM8155XJQ
Summary of Contents for Whirlpool GM8155XJQ
- Page 1 CONSUMER SERVICES TECHNICAL KM-26 EDUCATION GROUP PRESENTS MICROWAVE CONVECTION OVEN JOB AID Part No. 8177972...
- Page 2 This Job Aid, “Whirlpool Microwave-Convection Oven,” (Part No. 8177972), provides the techni- cian with information on the installation and service of the Whirlpool Microwave-Convection Oven. It is to be used as a training Job Aid and Service Manual. For specific information on the model being serviced, refer to the “Use and Care Guide,”...
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Page 3: Table Of Contents
Table of Contents Page SPECIFICATIONS ........................1-1 COMPONENT ACCESS ......................2-1 Microwave Oven Component Locations ................2-1 Removing The Microwave Oven Cabinet ................2-2 Removing The Electronic Oven Control ................2-3 Removing The Door Interlock Switches ................2-5 Removing The Humidity Sensor ..................2-7 Removing The Oven Lamp, The Damper Motor, &... - Page 4 WHIRLPOOL MODEL & SERIAL NUMBER DESIGNATIONS MODEL NUMBER MODEL NUMBER INTERNATIONAL SALES IND. OR MARKETING CHANNEL IF PRESENT PRODUCT GROUP G = WHIRLPOOL GOLD M = MICROWAVE PRODUCT IDENTIFICATION B = BROWNER C = CONVECTION G = GRILL / CRISPER...
- Page 5 MODEL & SERIAL NUMBER LABEL AND TECH SHEET LOCATIONS The Model/Serial Number label and Tech Sheet locations are shown below. Model & Serial Number Location Tech Sheet Location - v -...
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Page 6: Important Safety Information
IMPORTANT SAFETY INFORMATION Your safety and the safety of others is very important. Important safety messages have been provided in this Job Aid. Always read and obey all safety messages. This is the safety alert symbol. This symbol alerts you to hazards that can kill or hurt you and others. All safety messages will be preceded by the safety alert symbol and the word “WARNING.”... -
Page 7: Warning To Service Technicians
• Untrained personnel should not attempt service without a thorough review of test procedures and safety information contained in this Job Aid. Whirlpool microwave ovens have a monitoring system designed to assure proper operation of the safety interlock systems. The interlock monitor switch will immediately cause the oven fuse to blow if the door is opened and the primary door interlock switch and/or the secondary interlock switch contacts fail in a closed position. -
Page 8: To Excessive Microwave Energy
Precautions To Be Observed Before And During Servicing To Avoid Possible Exposure To Excessive Microwave Energy Do not operate or allow the oven to be operated with the door open. Make the following safety checks on all ovens to be serviced before activating the magnetron or other microwave source and make repairs as necessary. - Page 9 WARNING CAUTION • Disconnect the oven from electrical sup- • High voltages are present during the cook ply before servicing. Failure to do so could cycle. Extreme caution should be ob- result in electrical shock or death. served at all times. •...
- Page 10 R.F. LEAKAGE TEST EQUIPMENT compliance with U.S. Government Department of Health, Education and Welfare 21 CFR1030, • Electromagnetic energy leakage monitor performance Standard for Microwave Ovens. (NARDA 81 00B, HOLADAY H 1 501 ). A properly operating door and seal assembly •...
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Page 11: Specifications
Sensor Cook CONVECTION COOKING CYCLES - Manual Convection Grill / Broil CONVECTION COOKING CYCLES - Auto Cook * * * Whirlpool Corporate Exclusive * * * 41 Recipes using optimal combination of Convection Auto Convection Recipes and / or Microwaves Meat... - Page 12 Specifications (Continued) GM8155XJQ/B/T EXTERIOR FEATURES 22 5/8" W x 14 7/8" H x 20" D Outside Dimensions Wrap-Around Cabinet Construction Power Cord Length / Type 44" - 90 degree angle DOOR FEATURES Stamped steel Outer Door Window Size 12.8" W x 8.5" H...
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Page 13: Component Access
COMPONENT ACCESS This section instructs you on how to service each component inside the Model GM8155XJ Microwave Convection Oven. The components and their locations are shown below. MICROWAVE OVEN COMPONENT LOCATIONS Convection Element Circulation Motor Humidity Sensor Oven Lamp Convection Thermistor Oven Thermostat Line Fuse... -
Page 14: Removing The Microwave Oven Cabinet
REMOVING THE MICROWAVE OVEN CABINET Remove the five rear flange screws and WARNING the two right side screws from the micro- wave oven cabinet. NOTE: The two bot- tom flange screws are T-20 tamper-resis- Electrical Shock Hazard tant torx screws. Disconnect power before servicing. -
Page 15: Removing The Electronic Oven Control
REMOVING THE ELECTRONIC OVEN CONTROL From the front of the unit, slide the elec- WARNING tronic oven control up, unhook the four side tabs from the chassis slots, and pull the EOC forward. Electrical Shock Hazard Disconnect power before servicing. Replace all panels before operating. - Page 16 b) Remove the three screws and unclip the board from the two locking arms. Locking Arm Screw EOC Board Screw Screw Locking Arm...
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Page 17: Removing The Door Interlock Switches
REMOVING THE DOOR INTERLOCK SWITCHES To remove the primary door interlock WARNING switch: a) Disconnect the wire connector from the Electrical Shock Hazard terminals. Disconnect power before servicing. Replace all panels before operating. Failure to do so could result in death or electrical shock. - Page 18 To remove the monitor or secondary CAUTION: When you press in on the door interlock switch: locking arm to remove the switch in the next step, be careful not to press in too far, a) Disconnect the wire connector from the or you will break the arm off.
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Page 19: Removing The Humidity Sensor
REMOVING THE HUMIDITY SENSOR Lift the front of the top cover and bend the WARNING two clips out just enough to remove the humidity sensor cable from them. Electrical Shock Hazard Disconnect power before servicing. Replace all panels before operating. Failure to do so could result in death or electrical shock. -
Page 20: Removing The Oven Lamp, The Damper Motor, & Damper Switch
REMOVING THE OVEN LAMP, THE DAMPER MOTOR, & DAMPER SWITCH To remove the damper motor: WARNING a) Disconnect the wire connector from the motor terminals. Electrical Shock Hazard b) Remove the two mounting screws. Disconnect power before servicing. Damper Motor Replace all panels before operating. -
Page 21: Removing The Oven Thermostat
REMOVING THE OVEN THERMOSTAT Disconnect the wire connectors from the WARNING oven thermostat terminals. Screw Damper Motor Housing Electrical Shock Hazard Disconnect power before servicing. Oven Thermostat Replace all panels before operating. Failure to do so could result in death or electrical shock. -
Page 22: Removing The Magnetron
REMOVING THE MAGNETRON Disconnect the filament connector from WARNING the magnetron terminals. Remove the wire strap screw and the four Electrical Shock Hazard magnetron mounting screws and remove the magnetron from the waveguide. Disconnect power before servicing. Replace all panels before operating. Failure to do so could result in death or Waveguide Strap Screw... -
Page 23: Removing The High Voltage Transformer
REMOVING THE HIGH VOLTAGE TRANSFORMER Position the microwave oven on its left WARNING side so that the bottom of the oven is accessible. Electrical Shock Hazard Disconnect power before servicing. Replace all panels before operating. Failure to do so could result in death or HV Transformer electrical shock. -
Page 24: Removing The Line Fuse & Fuseholder
REMOVING THE LINE FUSE & FUSEHOLDER Disconnect the two wire connectors from WARNING the line fuse terminals. Unsnap the 20A line fuse from the Electrical Shock Hazard fuseholder. Disconnect power before servicing. Remove the screw from the fuseholder and remove it from the bracket. Replace all panels before operating. -
Page 25: Removing The High Voltage Rectifier, The High Voltage Capacitor, And The Fan Motor
REMOVING THE HIGH VOLTAGE RECTIFIER, THE HIGH VOLTAGE CAPACITOR, AND THE FAN MOTOR b) Disconnect the high voltage rectifier WARNING lead from the high voltage capacitor terminal. HV Capacitor Electrical Shock Hazard Disconnect power before servicing. Replace all panels before operating. Failure to do so could result in death or HV Rectifier electrical shock. - Page 26 Disconnect the wire connectors from the To remove the fan motor: line fuse terminals, the fan motor, and the a) Pull the fan off the motor shaft. high voltage capacitor, and remove the bracket assembly. Motor Bracket Assembly b) Remove the two screws from the fan motor and remove the motor from the bracket.
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Page 27: Removing The Convection Thermistor, Circulation Motor, & Convection Element
REMOVING THE CONVECTION THERMISTOR, CIRCULATION MOTOR, & CONVECTION ELEMENT c) Remove the thermistor mounting screw. WARNING Screw Electrical Shock Hazard Disconnect power before servicing. Convection Thermistor Replace all panels before operating. Failure to do so could result in death or electrical shock. - Page 28 c) Remove the two wire connectors from g) Remove the two 7 mm nuts and re- the circulation motor terminals. move the circulation motor from the bracket. Motor Coil Screw Bracket Screws Wire Connectors Circulation Motor 7 mm Nut 7 mm Nut d) Remove the three circulation fan motor 2 Holes mounting bracket screws and remove...
- Page 29 e) Remove the two mounting screws from the convection element brackets and remove the element. Convection Element Screws 2-17...
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Page 30: Removing The Turntable Motor
REMOVING THE TURNTABLE MOTOR Use a pair of wire cutters and clip the six WARNING areas between the holes on the turntable motor cover, and remove the cover. Electrical Shock Hazard Cut Here (1 of 6 Places) Disconnect power before servicing. Replace all panels before operating. -
Page 31: Removing The Oven Door, The Switch Actuators, And The Outer Glass
REMOVING THE OVEN DOOR, THE SWITCH ACTUATORS, AND THE OUTER GLASS b) Use a putty knife and pry out along the WARNING inner edge of the choke cover. c) Pull out on the cover to release all of the Electrical Shock Hazard locking tabs, and remove the cover from the door. - Page 32 To remove the switch actuators: d) Remove the end of the spring from the actuators. a) Remove the two inner door frame screws. Switch Actuators Inner Door Frame Door Frame Screw (1 of 2) Unhook Spring b) Start at the lower right corner of the e) Unhook the actuators from the slots in door and unclip the locking tabs along the inner door frame.
- Page 33 To remove the outer glass: a) Use a screwdriver and push the 10 locking tabs (see the arrows below) back so they are not over the glass. Outer Glass Tab Over Outer Glass b) Lift the glass and remove it from the door frame.
- Page 34 — NOTES — 2-22...
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Page 35: Component Testing
COMPONENT TESTING Before testing any of the components, perform • Check all connections before replacing com- the following checks: ponents, looking for broken or loose wires, failed terminals, or wires not pressed into • The most common cause for control failure is connectors far enough. -
Page 36: The Fan And Circulation Motors
THE FAN AND CIRCULATION MOTORS WARNING WARNING Electrical Shock Hazard Electrical Shock Hazard Disconnect power before servicing. Disconnect power before servicing. Replace all panels before operating. Replace all panels before operating. Failure to do so could result in death or Failure to do so could result in death or electrical shock. -
Page 37: The Line Fuse, High Voltage Rectifier (Diode), & High Voltage Capacitor
THE LINE FUSE, HIGH VOLTAGE RECTIFIER (DIODE), & HIGH VOLTAGE CAPACITOR Refer to page 2-12 for the procedure for servic- b) Set the ohmmeter to the R x 10K scale. ing the line fuse, and page 2-13 for the high c) Touch the positive ohmmeter lead to voltage rectifier (diode) and high voltage ca- the anode lead of the diode and the... -
Page 38: The Convection Element & Humidity Sensor
THE CONVECTION ELEMENT & HUMIDITY SENSOR WARNING WARNING Electrical Shock Hazard Electrical Shock Hazard Disconnect power before servicing. Disconnect power before servicing. Replace all panels before operating. Replace all panels before operating. Failure to do so could result in death or Failure to do so could result in death or electrical shock. -
Page 39: The Convection Thermistor And Oven Thermostat
THE CONVECTION THERMISTOR & OVEN THERMOSTAT WARNING WARNING Electrical Shock Hazard Electrical Shock Hazard Disconnect power before servicing. Disconnect power before servicing. Replace all panels before operating. Replace all panels before operating. Failure to do so could result in death or Failure to do so could result in death or electrical shock. -
Page 40: The Magnetron & High Voltage Transformer
THE MAGNETRON & HIGH VOLTAGE TRANSFORMER WARNING WARNING Electrical Shock Hazard Electrical Shock Hazard Disconnect power before servicing. Disconnect power before servicing. Replace all panels before operating. Replace all panels before operating. Failure to do so could result in death or Failure to do so could result in death or electrical shock. -
Page 41: The Damper & Door Interlock Switches
THE DAMPER & DOOR INTERLOCK SWITCHES Use the following tests to check the WARNING desired door interlock switch: a) Primary switch: Disconnect the wire Electrical Shock Hazard connector from the terminals. Disconnect power before servicing. b) With the door closed, touch the ohm- Replace all panels before operating. - Page 42 — NOTES —...
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Page 43: Diagnosis & Troubleshooting
DIAGNOSIS & TROUBLESHOOTING Touch Panel Continuity Diagram TOUCH PANEL CONTINUITY TEST 1. Remove the electronic oven control from the microwave oven (see page 2-3 for the SENSOR SENSOR SENSOR WARM TIMER CLOCK DEFROST POPCORN REHEAT COOK HOLD SET/OFF procedure). HOUR HOUR MINUTE MINUTE... -
Page 44: Troubleshooting Chart
TROUBLESHOOTING CHART PROBLEM CAUSE • The door is not firmly closed and latched. The microwave oven will • The START keypad was not touched. not run. • The directions were not exactly performed. • An earlier programmed operation is still running. •... -
Page 45: Wiring Diagram & Strip Circuits
WIRING DIAGRAM & STRIP CIRCUITS WIRING DIAGRAM Oven Thermostat AC 120/60 Hz Single Phase Only Line Fuse Oven Lamp L.V. Transformer O.L. Turntable Motor Primary T.T.M. Interlock Switch Fan Motor Secondary F.M. Interlock Switch Damper Motor D.M. Damper Switch Circulation Motor C.M. -
Page 46: Strip Circuits
STRIP CIRCUITS MICROWAVE PLUGGED IN Oven L.V. Transformer Line Fuse Thermostat WH/RD/WH/WH BN/BK/BL/BK MICROWAVE COOKING ON Primary Oven Line Fuse Interlock Relays Thermostat Switch High RD/WH/WH Voltage Section Oven D.M. T.T.M.. F.M. Lamp Relay 1 Relay 2 L.V. Transformer MICROWAVE CONVECTION COOKING ON Primary Oven Line Fuse... - Page 47 MICROWAVE DOOR OPEN Primary Oven Interlock Monitor Line Fuse Relay 2 Thermostat Switch Switch BN/BK WH/WH Secondary Interlock Switch MICROWAVE DOOR CLOSED Primary Oven Monitor Line Fuse Interlock Relay 2 Thermostat Switch Switch WH/WH BN/BK Secondary Interlock Switch...
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Page 49: Tech Tips
4-1. vide after-warranty service, anywhere in the United States. To locate the Whirlpool desig- If you need assistance or service, call the nated service company in your area, you can Whirlpool Customer Interaction Center toll free also look in your telephone directory Yellow Pages. - Page 50 G. Replacement parts or repair labor costs for units operated outside the United States. WHIRLPOOL CORPORATION SHALL NOT BE LIABLE FOR INCIDENTAL OR CONSE- QUENTIAL DAMAGES. Some states do not allow the exclusion or limitation of incidental or consequential damages, so this exclusion or limitation 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.
- Page 51 CORPORATION...