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Whirlpool SPEEDCOOK GH6208 XR Technical Education

Microwave oven with convection
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CONSUMER SERVICES TECHNICAL
KM-29
EDUCATION GROUP PRESENTS
SPEEDCOOK
MICROWAVE OVEN
WITH CONVECTION
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JOB AID
Part No. 8178545

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Summary of Contents for Whirlpool SPEEDCOOK GH6208 XR

  • Page 1 CONSUMER SERVICES TECHNICAL KM-29 EDUCATION GROUP PRESENTS SPEEDCOOK MICROWAVE OVEN WITH CONVECTION ������� ��������� �������� JOB AID Part No. 8178545...
  • Page 2 FORWARD This Whirlpool Job Aid, “Speedcook Microwave Oven With Convection” (Part No. 8178545), pro- vides the technician with information on the installation, operation, and service of the Speedcook Microwave Oven With Convection. For specific information on the model being serviced, refer to the “Use and Care Guide,”...

  • Page 3: Table Of Contents

    Precautions To Be Observed While Troubleshooting ......1-5 Whirlpool Model & Serial Number Designations ....... . 1-6 Model &...
  • Page 4 Page COMPONENT TESTING ........... 5-1 Base Thermostat .

  • Page 5: General

    GENERAL MICROWAVE OVEN SAFETY Your safety and the safety of others is very important. We have provided many important safety messages in this Job Aid and on the appliance. Always read and obey all safety messages. This is the safety alert symbol. This symbol alerts you to potential hazards that can kill or hurt you and others.

  • Page 6: Warning To Service Technicians

    WARNING TO SERVICE TECHNICIANS To avoid possible exposure to microwave Whirlpool microwave ovens have a monitoring radiation or energy, visually check the oven system designed to assure proper operation for damage to the door and door seal before of the safety interlock systems.

  • Page 7: Precautions To Be Observed Before And During Servicing To Avoid Possible Exposure 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 C. Before turning on the microwave power operated with the door open. for any service test or inspection within the microwave generating components, check Make the following safety checks on all the magnetron, waveguide or transmis-...

  • Page 8: Rf Leakage Test

    RF LEAKAGE TEST EQUIPMENT NOTE: Enter leakage readings in space BE- FORE and AFTER on the service document. Electromagnetic energy leakage monitor (NARDA 8100B, HOLADAY H 1501 ). All microwave ovens exceeding the emission level of 4 mw/cm must be reported to Dept. 275 ±15 ML glass beaker.

  • Page 9: Precautions To Be Observed While Troubleshooting

    PRECAUTIONS TO BE OBSERVED WHILE TROUBLESHOOTING The microwave oven is a high voltage, high WARNING current appliance. It is free from danger dur- DISCHARGING HIGH ing ordinary use, but extreme care should be VOLTAGE CAPACITORS taken during repair. For about 30 seconds after the oven is CAUTION turned off, an electric charge remains in the Service technicians should remove their...

  • Page 10: Whirlpool Model & Serial Number Designations

    WHIRLPOOL MODEL & SERIAL NUMBER DESIGNATIONS MODEL NUMBER MODEL NUMBER PRODUCT GROUP G = WHIRLPOOL GOLD M = MICROWAVE PRODUCT IDENTIFICATION B = BROWNER C = CONVECTION G = GRILL / CRISPER H = OTR HOOD COMBO K = KITS...

  • Page 11: Model & Serial Number Label And Tech Sheet Locations

    MODEL & SERIAL NUMBER LABEL AND TECH SHEET LOCATIONS The Model/Serial Number label and Tech Sheet locations are shown below. Model/Serial Number Label Tech Sheet (Behind Decorative Panel)

  • Page 12: Specifications

    SPECIFICATIONS MODEL GH6208XRQ/B/S Model Description Whirlpool Speed Oven in White, Black, Stainless CONTROL SYSTEM Timer: Type Electronic Limits 90 Min. 00 Sec. Scale Linear (Digital) Operation Touch Screen LCD Touch Pad Glass Keypad Disable / Child Lockout Mode Yes - Cancel Button...
  • Page 13 MODEL GH6208XRQ/B/S DOOR FEATURES Stamped Steel Window Curved Glass Seals Two Stage - (Capacitive and Reflective) MICROWAVE/GRILL SYSTEM Distribution Top Feed w/o Stirrer Magnetron One - Inverter type Grill Halogen/Quartz SAFETY FEATURES Interlock Three Door/Latch Operated, Primary, secondary, and monitor Thermal Protectors Five - Magnetron, Oven Cavity, Hood, Grill, Waveguide VENTILATION SYSTEM...
  • Page 14 MODEL GH7208XRQ/B/T/S/Y Model Description Whirlpool Speed Oven with Convection CONTROL SYSTEM Sensor Timer: Type Electronic Limits 90 Min. 00 Sec. Scale Linear (Digital) Operation Touch Screen LCD Touch Pad Glass Display LCD, White Backlight/3 Shade Blue + White Pantone 293C Background KeyPad Disable/ Child Lockout Mode Yes, Press “Cancel”...
  • Page 15 MODEL GH7208XRQ/B/T/S/Y MICROWAVE/GRILL SYSTEM Distribution Top Feed w/o Stirrer Magnetron One - Inverter type Grill Halogen/Quartz SAFETY FEATURES Interlock Three Door/Latch Operated Primary, secondary and monitor Thermal Protectors Six - Magnetron, Oven Cavity, Hood, Grill, Convection, Waveguide VENTILATION SYSTEM Type Convertible Recirculation, Exhaust Vertical/Horizontal Duct Outlet Size 3-1/4"...
  • Page 16 — NOTES — 1-12...

  • Page 17: Installation Information

    INSTALLATION INFORMATION INSTALLATION REQUIREMENTS PRODUCT DIMENSIONS INSTALLATION DIMENSIONS NOTE: The grounded 3-prong outlet must be inside the upper cabinet. See “Electrical Re- quirements” section. ˝ (76.2 cm) min. ˝ (76.2 cm) typical** ˝ (30.5 cm) min. ˝ (33.0 cm) max. ˝...

  • Page 18: Electrical Requirements

    ELECTRICAL REQUIREMENTS GROUNDING INSTRUCTIONS • For all cord connected appliances: The microwave oven must be grounded. In the event of an electrical short circuit, grounding reduces the risk of electric shock by providing an escape wire for the electric current. The microwave oven is equipped with a cord having a ground- Electrical Shock Hazard ing wire with a grounding plug.

  • Page 19: Installation Instructions

    INSTALLATION INSTRUCTIONS CONVERT OVEN TO EXTERNAL When the vent deflector is as far back as it can easily slide, flip it so that the wide VENTING (WALL OR ROOF side is to the back of the oven, and the VENTING ONLY) narrow side (with holes) is down.

  • Page 20: Replacement Parts

    REPLACEMENT PARTS ACCESSORIES If any of the installation hardware needs to be Filler Panel Kits are available from your deal- replaced, call us at our toll free number listed er to use when installing this oven in a 36˝ in the Use and Care Guide, and reference the (91.4 cm) or 42˝...

  • Page 21: Product Operation

    PRODUCT OPERATION PARTS AND FEATURES A. Oven door F. Exhaust vent (for recirculation) K. Convection element and fan P. Model and serial number (top surface of oven) (behind screen) plate B. Metal-shielded window G. Intake vent L. Grill element Q. Turntable C.

  • Page 22: Sensor Cooking

    SENSOR COOKING TURNTABLE The microwave system features the 6th The turntable can rotate in either direction to SENSE cooking system. A humidity sensor in help cook food more evenly. Do not operate the ™ the oven cavity detects moisture and humidity oven without having the turntable in place.
  • Page 23 When the manual cycle is over, the turntable Select “Off,” then touch “OK.” The turntable will automatically default to the “ON” mode. off indicator will appear on the display. To Turn On/Off: Repeat to turn the turntable back on. Touch TURNTABLE ON/OFF (see C below).

  • Page 24: Oven Control

    OVEN CONTROL MAIN MENU: Time / Temp / Cook Method Most Used Power Food Type Kids Menu Settings & Info A. Control panel B. Interactive touch display The oven’s controls are accessed through its When the oven is not in use (in standby mode), control panel and interactive touch display.

  • Page 25: Main Menu

    MAIN MENU Touch Screen The LCD touch screen is used to make menu The Main Menu is displayed on the default selections, adjust settings and input com- screen. mands. From the Main Menu, all automatic cooking programs can be activated; all manual cooking can be programmed;...

  • Page 26: Demo Mode

    CLOCK Touch “Adjust Year,” and change the year, if desired. This is a standard 12-hour clock (12:00 AM- To Hide Date: On Date screen, touch “Hide 11:59 PM), or a 24-hour clock (0:00-23:59). Date.” The display will immediately return to When power is first supplied to the oven, or the Main Menu.

  • Page 27: Display Contrast

    DISPLAY CONTRAST To Activate Learning Mode: The oven must be off. Display contrast has 11 settings, ranging from minimum to maximum. On the Main Menu, touch “Settings & Info.” To Set Display Contrast: On Settings & Info screen, touch “More On Main Menu, touch “Settings &...
  • Page 28 START NOTE: The Timer does not start or stop the oven. The START control will start any function. The Timer countdown can be seen in full screen If non-sensor cooking is interrupted, touching or in minimized view. In minimized view, the the START control pad will resume the preset countdown is always visible.

  • Page 29: Cooktop Light

    CHILD LOCK VENT FAN The Child Lock disables all controls to prevent The vent fan has 4 speeds: boost, high, me- unintended use of the oven. The only control dium and low. that will function while the Child Lock is active To protect the oven, the vent fan will automati- is the CANCEL pad on the control panel.

  • Page 30: Cooking Animation

    COOKING ANIMATION PROGRESS BAR The cooking animation appears during any The progress bar is a visual picture of the cooking cycle, whether automatic or manual. estimated running time of a sensor cooking The animation shows what type of cooking is cycle.

  • Page 31: Using The Quick Reference Guide

    OVEN CONTROL PANEL PUSHBUTTON CONTROLS Quick Reference Guide Whirlpool Premium Speedcook Oven ® Use this as a quick reference when using your Whirlpool Premium Speedcook oven. ® For more information, see the Use and Care Guide. Quick Tips SETTING HOW TO TO SET CLOCK Touch “Settings &...

  • Page 32: How To Use

    Accessory Use CYCLE TYPE ACCESSORY: DESCRIPTION SIZZLE PAN CYCLE Sizzle Pan: Use detachable handle to remove from oven. GRILL CYCLE Grill rack with Sizzle Pan underneath: Place food directly on rack. BOIL & SIMMER Steamer base and lid CYCLE STEAM CYCLE Steamer base, insert and lid REHEAT CYCLE Cooking Rack: for two-level reheating.

  • Page 33: Component Access

    COMPONENT ACCESS This section instructs you on how to service each component inside the Speedcook Microwave Oven with Convection. The components and their locations are shown below. COMPONENT LOCATIONS A. Halogen grill element N. Cooling fan motor AA. Hood/light switch B.

  • Page 34: Removing The Bottom Cover

    REMOVING THE BOTTOM COVER Partially lower the front of the cover and disconnect the connector from the turnta- ble motor terminals, then lower the cover the rest of the way. Disconnect the power connector from the bottom of the microwave oven. Unhook the bottom cover assembly from Electrical Shock Hazard the microwave oven and remove it.

  • Page 35: Removing A Hood Lamp Socket, Base Thermostat, & Exhaust Fan Motor

    REMOVING A HOOD LAMP SOCKET, BASE THERMOSTAT, & EXHAUST FAN MOTOR To remove the base thermostat: a) Disconnect the two wire connectors from the base thermostat terminals. b) Remove the two screws from the base thermostat and remove the thermostat. Electrical Shock Hazard Disconnect power before servicing.
  • Page 36 c) Lift the bottom cover and remove the e) Remove the two T10 torx screws from four indicated screws from the exhaust the exhaust fan housing, and remove motor and U bracket. the housing from the motor and fan. f) Pull the blower off the motor shaft. Exhaust Fan Motor Screws...

  • Page 37: Removing The Turntable Motor & The Air Tube & Vent Base

    REMOVING THE TURNTABLE MOTOR & THE AIR TUBE & VENT BASE To remove the air tube & vent base: a) Pull out on the two clips, and pull the end of the air tube off the 90° vent base. b) Cut the wire tie from around the air tube (see the left photo), and pull the end of the air tube out of the door Electrical Shock Hazard...
  • Page 38 REASSEMBLY NOTE: When you reinstall the air tube on the 90° vent base, twist the tube so that the two tabs are out of alignment with the two locking arms on the vent base. Slide the tube into the base, and allow the tube to Twist Air untwist so that the tabs clip into the arms and Tube...

  • Page 39: Removing The Relay Control Board And Line Fuse

    REMOVING THE RELAY CONTROL BOARD AND LINE FUSE Remove the four indicated screws from the right panel cover, then pull the cover forward, and remove it. Remove the screw from the right panel. Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating.

  • Page 40: Line Fuse

    To remove the relay control board: d) Remove the T10 torx screw from the green ground wire and remove the a) Lift the right panel and relay control relay control board. NOTE: The relay board and unhook the two side T-tabs, control board and its connectors and and pull the right panel and relay con- wire colors are shown on the following...
  • Page 41 P62 (OR/GY) P61 (3 WH) P63 (2 RD) P71 (RD/WH) P66 (5 RD/5BK) P73 (2 WH) P74 (2 BK) P64 (5 GY) P65 (3 RD) P67 (3 YL) P68 (WH/BK/RD) Relay Control Board W/Connectors & Wire Color Callouts...

  • Page 42: Removing The Oven Door Components

    REMOVING THE OVEN DOOR COMPONENTS b) Open the microwave oven door. c) Remove the screw at the top of the oven door hinge. d) Close the oven door but do not latch it. Lift the door, unhook the bottom hinge pin from the bracket, and remove the door.
  • Page 43 g) Pull the wires and the UIB connector b) Using a putty knife, pry out on the out- out through the chassis cutout, and er door frame along the top to release position the oven door with the top the retainer clips. Then use a regular edge facing you.
  • Page 44 f) Release the four clips from the LCD c) Remove the two T10 torx screws from display board and remove it from the the electronic control cover and re- door frame. move the cover from the door. Electronic Control Cover Screws d) Disconnect the wire connectors be- tween the user interface and the LCD display boards.
  • Page 45 i) Lift the door glass assembly off the door frame. Door Glass Assembly Remove Door Glass 4-13...

  • Page 46: Removing The Cavity Lamp And The Hood/Light Switch Board

    REMOVING THE CAVITY LAMP AND THE HOOD/LIGHT SWITCH BOARD b) Remove the clip from the cavity lamp socket and remove the lamp and socket. Electrical Shock Hazard Clip & Socket Disconnect power before servicing. To remove the hood/light switch board: Replace all parts and panels before operating.
  • Page 47 c) Disconnect the hood/light switch board connector from the chassis and re- move the board. Hood/Light Switch Board Connector Hood/Light Switch Board 4-15...

  • Page 48: Removing The Primary, Secondary, And Monitor Interlock Switches

    REMOVING THE PRIMARY, SECONDARY, AND MONITOR INTERLOCK SWITCHES Insert a small screwdriver blade into each of the switch actuator slots, and rotate the switch actuators to unlock them, then remove the switch assemblies from the oven. Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating.

  • Page 49: Removing The Oven From The Installation

    REMOVING THE OVEN FROM THE INSTALLATION Excessive Weight Hazard Use two or more people to move or install microwave oven. Failure to do so can result in back or other injury. Electrical Shock Hazard Disconnect power before servicing. While supporting the bottom of the mi- crowave oven, locate and remove the Replace all parts and panels before two mounting bolts from the top of the...

  • Page 50: Removing The Cabinet

    REMOVING THE CABINET Remove the three T10 torx screws from the top of the cabinet. Remove the T10 torx screw from the power cord cover and remove the cover. Power Cord Cover & Screw Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating.

  • Page 51: Removing The Fc (Forced Convection) Thermostat, The Fc Motor

    REMOVING THE FC (FORCED CONVECTION) THERMOSTAT, THE FC MOTOR, AND THE FC RING HEATER To remove the FC motor: a) Disconnect the two wires from the FC motor terminals. b) Remove the three T10 torx screws from the FC motor bracket, and remove the motor from the heater cover.

  • Page 52: Fc Ring Heater

    d) Pry the clip off the FC motor shaft, FC Ring Heater Wires and remove the fan blade and the flat washer below the blade from the shaft. Remove the FC fan motor. Heater Cover Cover Screw Clip (1 of 4) c) Pry the clip off the FC motor shaft, and remove the fan blade and the flat washer below the blade from the shaft...
  • Page 53 e) Remove the two 5/16˝ hex-head screws FC Ring Heater Screws from the FC ring heater bracket on the inner cover, and remove the element. 4-21...

  • Page 54: Removing The Fc Thermistor, And The Cavity Thermostat

    REMOVING THE FC THERMISTOR, AND THE CAVITY THERMOSTAT & HUMIDITY SENSOR Cavity Thermostat & Humidity Sensor Electrical Shock Hazard FC Thermistor Disconnect power before servicing. Replace all parts and panels before To remove the FC thermistor: operating. a) Squeeze the ends of the clip and re- Failure to do so can result in death or move the clip and the FC thermistor.

  • Page 55: Humidity Sensor

    To remove the cavity thermostat and b) Disconnect the wires from the cavity humidity sensor: thermostat terminals. c) Remove the sensor wires from the NOTE: The cavity thermostat and humid- standoffs at the top of the chassis. ity sensor are serviced as an assembly. a) Lift and unhook the clip at the rear of the mounting bracket for the cavity thermostat and humidity sensor.

  • Page 56: Removing The Grill Thermostat And Grill Elements

    REMOVING THE GRILL THERMOSTAT AND GRILL ELEMENTS b) Remove the two screws from the ther- mostat terminals, and remove the thermostat. Electrical Shock Hazard Disconnect power before servicing. Grill Thermostat Replace all parts and panels before operating. Failure to do so can result in death or electrical shock.
  • Page 57 NOTE: Use a pair of clean cotton gloves d) Remove the six 7/32˝ nuts and wash- to handle the grill elements, otherwise, ers from the wire guard. the oil from your fingers could shorten their life. b) Softstart Quartz Element Only: Press down on the locking tabs, and pull the wire connectors off the ends of the quartz element, then remove the...

  • Page 58: Removing The Power Supply Cord And Ac Line Filter

    REMOVING THE POWER SUPPLY CORD AND AC LINE FILTER To remove the power supply cord: a) Disconnect the white wire on the pow- er supply cord from the AC line filter board at terminal P31, and the black wire at terminal P32. b) Remove the chassis screw from the green ground wire on the power sup- Electrical Shock Hazard...

  • Page 59: Removing The Fc (Forced Convection) Thermoactuator, The Magnetron

    REMOVING THE FC (FORCED CONVECTION) THERMOACTUATOR, THE MAGNETRON THERMISTOR, AND THE MAGNETRON To remove the FC thermoactuator: a) Remove the right cover and panel (see page 4-7 for the procedure). b) Remove the top (secondary) door switch assembly (see page 4-16 for the procedure).
  • Page 60 To remove the magnetron thermistor: d) Remove the three air duct screws, and remove the air duct from the chassis. a) Remove the screw from the magne- NOTE: Remove the channel wires tron thermistor and remove the therm- from the air duct as you remove the istor from the magnetron.

  • Page 61: Removing The Waveguide Thermostat & Exhaust Fan Motor Capacitor

    REMOVING THE WAVEGUIDE THERMOSTAT & EXHAUST FAN MOTOR CAPACITOR To remove the waveguide thermostat: a) Disconnect the two wire connectors from the waveguide thermostat termi- nals. b) Remove the two hex nuts from the waveguide thermostat bracket and re- move the thermostat. Electrical Shock Hazard Disconnect power before servicing.

  • Page 62: Removing The Cooling Fan Motor

    REMOVING THE COOLING FAN MOTOR Cooling Fan Motor Housing Screws Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Motor Connector Failure to do so can result in death or electrical shock. Unplug microwave oven or disconnect power.

  • Page 63: Removing The Inverter Board

    REMOVING THE INVERTER BOARD Touch Screwdriver Tip To Chassis Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before Touch Screwdriver Shaft To Filament Terminals operating. Failure to do so can result in death or Disconnect the two magnetron filament electrical shock.
  • Page 64 Disconnect the black and blue wires 12. Disconnect the two filament wires from (CN702) and the 3-wire connector the inverter board at CN703. (CN701) from the inverter board. 13. Remove the T10 torx mounting screw Remove the screw from the green-yel- from the inverter board and unclip it from low ground wire on the inverter board the base.

  • Page 65: Removing The Relay Board

    REMOVING THE RELAY BOARD Push out on the three outside tabs of the relay board holder, and lift the relay board out of the holder as far as the wires will allow. Electrical Shock Hazard Disconnect power before servicing. Relay Board Replace all parts and panels before operating.
  • Page 66 GR & BU WH & BU 2 BU GY & BK 4 Wires 2 RD 3 Wires 2 BR 3 YL 10 Wires 3 Wires 2 WH Relay Board W/Connector Wire Color Callouts 4-34...

  • Page 67: Component Testing

    COMPONENT TESTING IMPORTANT: Before performing any tests on • Conduct a microwave energy test after the microwave oven, be sure to observe the performing any tests or repairs to the mi- following: crowave oven. • Unplug microwave oven or disconnect •...
  • Page 68 Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. TURNTABLE MOTOR LINE FUSE Refer to page 4-7 for the procedure for access- ing the line fuse. Refer to page 4-5 for the procedure for access- ing the turntable motor.
  • Page 69 Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. DOOR INTERLOCK SWITCHES FC THERMOSTAT Refer to page 4-16 for the procedure for ac- Refer to page 4-19 for the procedure for ac- cessing the door interlock switches.
  • Page 70 Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. FC MOTOR FC RING HEATER Refer to page 4-19 for the procedure for ac- cessing the FC ring heater. Unplug microwave oven or disconnect Refer to page 4-19 for the procedure for ac- power.
  • Page 71 Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. FC THERMISTOR CAVITY THERMOSTAT & HUMIDITY SENSOR Humidity Sensor Cavity Refer to page 4-22 for the procedure for ac- Thermostat cessing the FC thermistor.

  • Page 72: Grill Thermostat

    Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. GRILL THERMOSTAT GRILL ELEMENTS Refer to page 4-24 for the procedure for ac- cessing the grill thermostat. Refer to page 4-24 for the procedure for ac- Unplug microwave oven or disconnect cessing the grill elements.

  • Page 73: Fc Thermoactuator

    Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. FC THERMOACTUATOR MAGNETRON THERMISTOR Magnetron Thermistor Refer to page 4-27 for the procedure for ac- cessing the FC thermoactuator.

  • Page 74: Magnetron

    Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. MAGNETRON WAVEGUIDE THERMOSTAT Refer to page 4-29 for the procedure for ac- Filament cessing the waveguide thermostat. Terminals Unplug microwave oven or disconnect power.

  • Page 75: Exhaust Fan Motor Capacitor

    Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. EXHAUST FAN MOTOR CAPACITOR COOLING FAN MOTOR Refer to page 4-29 for the procedure for ac- Refer to page 4-30 for the procedure for ac- cessing the exhaust fan motor capacitor.
  • Page 76 — NOTES — 5-10...

  • Page 77: Diagnostics & Troubleshooting

    DIAGNOSTICS & TROUBLESHOOTING PRIMARY, SECONDARY, AND MONITOR INTERLOCK SWITCH CHECKOUT PROCEDURE Primary, Secondary, and Monitor Interlock Switch Checkout Procedure Switch Check By Door Open Door Closed 1. Unplug microwave oven or disconnect power. 2. Disconnect the wires at the Primary Interlock Switch. 3.

  • Page 78: Troubleshooting Circuit Test Chart

    TROUBLESHOOTING CIRCUIT TEST CHART Convection Hood Exhaust Cooking Mode Magnetron Element Grill Elements Cooling Fan Convection Fan Microwave only Convection Grill Microwave and Grill Combination Microwave and Convection Combination *Magnetron and convection elements turn on alternately, not simultaneously. NOTE: After convection or grill elements are on, the cooling fan and hood exhaust fan may be on for up to 10 minutes for cooling.

  • Page 79: Microwave Oven Power Output Test

    MICROWAVE OVEN POWER OUTPUT TEST NOTE: If the water takes longer than 2 minutes to heat, this may indicate 1. Place 8 oz (250 mL) of lukewarm water in the center of the either the operating voltage is lower than 110 volts or there is a problem microwave oven.
  • Page 80 Display Likely Failure Condition Recommended Repair Procedure Power to magnetron 1. Unplug microwave oven or disconnect power. interrupted 2. After 40 seconds, check to see whether this solves the problem. 3. Check cooling fan operation. 4. Check the magnetron. 5. Check P65 connection on the relay control board. 6.

  • Page 81: Checking The Inverter

    CHECKING THE INVERTER Measure Oven Input Current If more than 0.5A: The 1200W inverter is probably OK. Check the magnetron. See Magnetron test in “Component Tests.” If less than 0.5A: There is no input to the 1200W inverter. Amps Check the following: No AC voltage supply.
  • Page 82 — NOTES —...

  • Page 83: Wiring Diagram & Strip Circuits

    WIRING DIAGRAM & STRIP CIRCUITS SCHEMATIC DIAGRAM 45 Y/G 47 R 46 R FC Ring Heater 16 R Quartz Grill Heater 15 BU Halogen Grill Element 13 W 10 W Softstart Quartz Tube 14 BK 42 GY 40 GY 39 BU 36 R 24 G 35 BR...

  • Page 84: Strip Circuits

    STRIP CIRCUITS INVERTER & MAGNETRON Relay Board Waveguide MW Relay Thermostat Filter Filter 4903 Secondary Cavity Interlock Thermostat Fuse Primary Ribbon Switch 20 Amp Interlock Cable Magnetron Ribbon Switch CN702 Cable Relay Control Board Inverter HALOGEN GRILL HEATER Secondary Grill Thermostat Interlock Cavity Grill Relay...
  • Page 85 HOOD EXHAUST FAN ON (VARIABLE SPEED) Fuse 500mA 2P82 4170 4P54 7P81 5P81 Inverter Motor Capacitor 3P82 HF Triac 8P81 1P54 3P81 1P82 7190 Waveguide Thermostat Filter Fuse 20 Amp Filter Relay Board Cavity Thermostat COOLING FAN MOTOR 1P83 2P53 CF Relay 4901 Fuse...
  • Page 86 COOKTOP LIGHT ON (VARIABLE LIGHT) Relay Board Cavity Fuse Waveguide Fuse Thermostat 20 Amp Thermostat Filter Filter 500mA 4 1 7 0 2P84 Fuse Primary Inverter 500mA 2P81 Interlock Switch 4 1 2 1 1P55 2P55 3P55 1P81 1P84 Cavity Relay Control 1P62 Lamp...

  • Page 87: Tech Tips

    TECH TIPS GRILL COOKING OPTIONS The microwave oven provides 1200 Watts of The third element is a 60 volt, 600 watt Soft- cooking power. The grill provides 1500 watts Start quartz element. This element is not used of grilling power. The grill assembly consists for grilling heat.
  • Page 88 Each of the three grill elements is controlled of the line. The halogen grill element is On by its own relay. At the instant of start, the when the circuit is complete from the L1 side quartz heater and SoftStart relays are closed of the line through the halogen element and (the grill relay is open).
  • Page 89 During oven grilling, only the halogen element To remove the quartz or halogen grill ele- glows (the quartz element is operational, but ment from the oven cavity: not noticeable). a) Pull the guard down and remove it from the top of the oven cavity. The grill is controlled by a grill thermostat.

  • Page 90: High Voltage Inverter Power Supply Test

    HIGH VOLTAGE INVERTER POWER SUPPLY TEST NOTE: Do not attempt to repair the high voltage inverter power supply board. Replace the com- plete inverter board assembly. Electrical Shock Hazard Power is present during the following tests. Verify proper operation of the inverter board by performing the following two tests. It is recom- mended to use an AC line input current amp meter for testing.
  • Page 91 TEST #2 Leave the magnetron wires disconnected and disconnect connector P65 from the relay control board. Program the oven for high power for 1 minute. Press START and observe the meter. It should indicate between 0.4 and 0.8 amps. After ap- proximately 3 seconds, the oven will turn off, and the display will indicate an F7 error code.
  • Page 92 — NOTES —...
  • Page 93 — NOTES —...
  • Page 94 — NOTES —...

  • Page 95: Product Specifications

    PRODUCT SPECIFICATIONS WARRANTY INFORMATION SOURCES IN THE UNITED STATES: FOR PRODUCT SPECIFICATIONS AND WARANTY INFORMATION CALL: FOR WHIRLPOOL PRODUCTS: 1-800-253-1301 FOR KITCHENAID PRODUCTS: 1-800-422-1230 FOR ROPER PRODUCTS: 1-800-447-6737 FOR TECHNICAL ASSISTANCE WHILE AT THE CUSTOMER’S HOME CALL: THE TECHNICAL ASSISTANCE LINE: 1-800-253-2870...
  • Page 96 CORPORATION...

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