TechSheet-W11175370-REVA
Tech Sheet FOR SERVICE TECHNICIAN’S USE ONLY FOR SERVICE TECHNICIAN’S USE ONLY FOR SERVICE TECHNICIAN’S USE ONLY FOR SERVICE TECHNICIAN’S USE ONLY Do not discard

FAILURE CODE INDICATIONS PRIMARY, SECONDARY, AND MONITOR INTERLOCK SWITCH CHECKOUT PROCEDURES ACU PCBA PIN VOLTAGE MATRIX

NOTE: Many of the problems listed in the chart below may be solved by power cycling: Unplug microwave oven or disconnect power. After 1 minute, IMPORTANT: Before checking the interlock switches, unplug microwave oven or disconnect power. Be sure to disconnect all of the wires at the switch Check for proper voltage by completing the following steps: 3. Plug in microwave oven or reconnect power, and con rm plug in microwave oven or reconnect power. being tested before making any continuity readings. voltage reading. 1. Unplug microwave oven or disconnect power. DANGER WARNING Display Likely Failure Recommended Repair Procedure NOTE: The Primary Interlock Switch, Monitor Interlock Switch, and Door Interlock Switch are mounted in door lock switch cradle. All the interlock 4. Unplug microwave oven or disconnect power. Condition switches can be indenti ed by the wire colors that are connected to the terminals of the switches. See the chart below for wire color designation. 2. Connect voltage measurement equipment to the terminals listed below. (P1-3 and P2-3 are neutral.)

Switch Check By Door Open Door Closed NOTE: For 50V and over, the tolerance is +/-15V. For 0V, the tolerance is +/-3V. Primary Interlock Enter the Diagnostics mode (press CANCEL – CANCEL – START) and press COOK TIME/POWER to verify the failure code. If the failure code 1. Unplug microwave oven or disconnect power. – + Abbreviations CF – Cooling Motor CL – Cavity Light NFS – Neutral for displayed matches complaint, see chart below for details. Monitor Interlock 2. Disconnect the wires at the Primary Interlock Switch. HL – Hood Light Switch 3. Check from the common terminal (black/brown wires) to the normally open terminal TT – Turntable Motor F1E4 Microwave ACU 1. Unplug microwave oven or disconnect power. 3. Replace all parts and panels before operating. N – Neutral FC – Forced Convection HF – Hood Fan L – Line Voltage 4. Plug in microwave oven or reconnect power. (black/white wires). PCBA failure 2. Replace ACU PCBA. 4.

F2E1 Stuck key failure 1. Unplug microwave oven or disconnect power. 3. Replace all parts and panels before operating. 1. Unplug microwave oven or disconnect power. NOTE: When checking voltage readings on ACU PCBA, connect the grounding test lead of voltmeter to ACU PCBA neutral wire. Use the positive test 2. Replace touch panel. 4. Plug in microwave oven or reconnect power. 2. Disconnect the wires at the Monitor Interlock Switch. lead to probe connectors designated below. 3. Check from the common terminal (white/red wires) to the normally closed terminal Electrical Shock Hazard Electrical Shock Hazard + – (blue/white wires). Only authorized technicians should Disconnect power before servicing. F4E1 Cavity 1. Enter the Diagnostics Mode (press CANCEL – 5. Replace all parts and panels before operating. 4. MW Oven Running perform diagnostic voltage measurements. temperature CANCEL – START), and then press CONVECT BAKE —VAC Readings Replace all parts and panels before sensor failure to display the FC NTC cavity temperature sensor 6. Plug in microwave oven or reconnect power. After performing voltage measurements, operating. FC NTC reading. Verify the sensor temperature reading is at disconnect power before servicing. room temperature (typically 50ºF to 90ºF [10ºC to 7. Enter the Diagnostics Mode (press CANCEL – Failure to do so can result in death or 32ºC]) and verify failure code. If failure code matches CANCEL – START), and then press CONVECT BAKE Secondary Interlock 1. Unplug microwave oven or disconnect power. – + Failure to follow these instructions can electrical shock. complaint, continue to Step 2. to display the FC NTC cavity temperature reading. result in death or electrical shock. Verify the sensor temperature reading. If the reading 2. Disconnect the wires at the Secondary Interlock Switch. 2. Unplug microwave oven or disconnect power. is correct, stop. 3. Check from the common terminal (white/blue wires) to the normally open terminal Table of MW Oven Plugged In—Sitting Idle—Volts AC Readings 3. Disconnect FC NTC sensor from ACU PCBA P12 8. If the reading is still not correct, unplug microwave (blue/blue wires). connector. oven or disconnect power. Hood Fan Motor— Hood Fan Motor— Hood Fan Motor— Hood Fan Motor— Hood Fan Motor— Hood Fan Motor— Hood Fan Motor— Hood Fan Motor— Hood Fan Motor— Hood Fan Motor— Hood Fan Motor— Hood Fan Motor— Hood Light— Hood Light— 4. (1) (1), Door Open (2) (2), Door Open (3) (3), Door Open (4) (4), Door Open (5) (5), Door Open (6) (6), Door Open High, Door Open Low, Door Open 4. Measure sensor resistance between connector pins 9. Replace ACU PCBA. and con rm reading is between 9.7k and 10.3k Door Interlock 1. Unplug microwave oven or disconnect power. + – Power On, Hood Light— Hood Light— MW Oven Start at room temperature. If measurement is not correct, 10. Replace all parts and panels before operating. Door Closed High Low Voltage Measurement Safety Information or if a short or open circuit is found, replace sensor. 2. Disconnect the wires at the Door Interlock Switch. Pin Name Wire Color Power On, 11. Plug in microwave oven or reconnect power. Door Open When performing live voltage measurements, you must do the following: Verify the controls are in the off position so that the appliance does not start when energized. 3. Check from the common terminal (blue wire) to the normally closed terminal (orange wire). Allow enough space to perform the voltage measurements without obstructions. Keep other people a safe distance away from the appliance to prevent potential injury. F4E4 Humidity sensor 1. Enter the Diagnostics Mode (press CANCEL – 6. Enter the Diagnostics Mode (press CANCEL – 4. Reconnect wires to switch. Always use the proper testing equipment. error After voltage measurements, always disconnect power before servicing. CANCEL – START), and then press COOK to display CANCEL – START), and then press COOK to

the humidity sensor reading. If display does not show see if failure code reappears. (+) Continuity (-) No Continuity

“8891,” continue to Step 2. NOTE: There may be a delay (approximately NOTE: These diagrams are not intended to show a complete circuit; they represent the position of switches during “DOOR OPEN” or “DOOR P1-1 (L) Brown 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 CLOSED” (continuity checks only). P1-3 (N) White 0000000000000000006 2. Unplug microwave oven or disconnect power. 1 minute, 20 seconds) before the failure code is P2-1 (NFS) White 0 120 0 120 0 120 0 120 0 120 120 120 120 120 0 120 0 120 6.3 P2-2 (Door) Orange 0 120 0 120 0 120 0 120 0 120 120 120 120 120 0 120 0 120 50 3. Connect a new humidity sensor to the ACU PCBA P6 displayed. NOTE: Interlock, Moniter switches and Door interlock switch cannot be adjusted and all these switches should be replaced if any of them is found to be P2-3 (N) Green/ 0000000000000000006 defective. After replacing interlock/monitor switches, reconnect wires to switch and check for continuity. Blue connector. 7. If the failure code reappears, unplug microwave oven P4-1 (FC-V) Blue 0 120 0 120 0 120 0 120 0 120 120 120 120 120 0 120 0 120 0 P4-2 (TT) Red 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 120 4. Replace all parts and panels before operating. or disconnect power. P4-3 (CL) Green 0 120 0 120 0 120 0 120 0 120 120 120 120 120 0 120 0 120 120 P4-4 (HL) Yellow 0 0 0 0 0 0 0 0 0 0 0 0 0 0 120 120 68 68 0 5. Plug in microwave oven or reconnect power. 8. Replace ACU PCBA. Door Closed Door Open P4-5 (HF) Black 0 0 120 120 84 84 75 75 63 63 57 57 52 52 0 0 0 0 0 P4-6 (HF-R) Gray 0 0 120 120 84 84 80 80 70 70 60 60 70 70 0 0 0 0 0 9. Replace all parts and panels before operating. L (NC) (NO) N (NC) L (NC) (NO) N (NC)

10. Plug in microwave oven or reconnect power. (NO) (NC) P5-4 (NO) P5-2 (NO) (NC) P5-4 (NO) P5-2

Primary Monitor Secondary Primary Monitor Secondary Interlock Interlock Interlock Interlock Interlock F8E5 Exhaust air 1. Enter the Diagnostics Mode (press CANCEL – 5. Replace all parts and panels before operating. Switch Switch Switch Switch Switch Interlock temperature Switch PRECAUTIONS TO BE OBSERVED BEFORE detection failure CANCEL – START), and then press WARM HOLD to 6. Plug in microwave oven or reconnect power. from Hood NTC display the Hood NTC thermistor reading. Verify the (NO) (NC) (NO) (NC) temperature reading is at room temperature (typically 7. Enter the Diagnostics Mode (press (CANCEL – P 2-2 P 2-2 AND DURING SERVICING TO AVOID POSSIBLE CANCEL – START), and then press WARM HOLD to 50ºF to 90ºF [10ºC to 32ºC]) and verify failure code. If display the Hood NTC thermistor reading. Verify the Door Door failure code matches complaint, continue to Step 2. Interlock Interlock temperature reading. If it is still not correct, replace Switch Switch EXPOSURE TO EXCESSIVE MICROWAVE ENERGY 2. Unplug microwave oven or disconnect power. ACU PCBA.

a. Do not operate or allow the oven to be operated with the d. Any defective or misadjusted components in the interlock, monitor, 3. Disconnect Hood NTC thermistor cable from 8. If failure does not reappear, stop. NOT HEATING TROUBLESHOOTING INSTRUCTION door open. door seal, and microwave generation and transmission systems ACU PCBA P9 connector. shall be repaired, replaced, or adjusted by procedures described IMPORTANT: High voltage is present at the magnetron and high-voltage capacitor terminals. Avoid direct contact when power is connected to b. Make the following safety checks on all ovens to be serviced in service manual before the oven is released to the owner. 4. Measure resistance between connector pins and these components to avoid serious injury or possible death. Always be sure that the high-voltage capacitor is discharged before accessing any CONNECTORS ON ACU PCBA before activating the magnetron or other microwave source, con rm reading is between 9.5k and 10.5k at of these components. and make repairs as necessary: e. A microwave leakage check to verify compliance with the Federal room temperature. If measurement is not correct, or P2 Performance Standard should be performed on each oven prior to if a short or open circuit is found, replace the Hood For a no-heat condition, refer to the following step-by-step instructions: Check for loose or failed connectors on the ACU PCBA (P1, P2, P1 P4 3 2 1 1. Interlock Operation release to the owner. NTC thermistor. P4). If these check out OK, plug in microwave oven or N 3.1 L 6 5 4 3 2 1 1. Unplug microwave oven or disconnect power. reconnect power. 2. Proper Door Closing f. Do not attempt to operate the oven if the door glass is broken. 2. Use a 20,000 ohm, 2-watt resistor to discharge the high-voltage Check for ACU PCBA failure. Refer to “ACU PCBA Pin Voltage 3. Seal and Sealing Surfaces (Arcing, Wear and Other Damage) capacitor. Matrix.” 9. If the input voltage at the high-voltage transformer primary input 4. Damage to or Loosening of Hinges and Latches 3. Disconnect the high-voltage transformer primary windings. wires is close to the rating voltage 120 +/-15 VAC, unplug microwave oven or disconnect power. 5. Evidence of Dropping or Abuse 4. Attach the voltmeter leads to the high-voltage transformer primary 10. Check the power supply components. Refer to the “Component NOTE: There are purposely empty input wires. Tests” section. terminals between each of the numbered c. Before turning on microwave power for any service test or P6 inspection within the microwave generating compartments, 5. Plug in microwave oven or reconnect power. High-voltage transformer check the magnetron, waveguide or transmission line, and terminals on P1 connectors. cavity for proper alignment, integrity and connections. 6. Close door and program the microwave oven to operate for High-voltage capacitor 30 seconds. High-voltage diode P12 P9 7. Press START. 11. If the power supply components check out OK, check the 8. Check the input voltage at the high-voltage transformer primary connection between the magnetron and the high-voltage input wires. If the voltage is not close to the rating voltage 120 transformer. ACU PCBA +/-15 VAC, unplug microwave oven or disconnect power. Check 12. If all of the components check out OK, replace the magnetron. FOR SERVICE TECHNICIAN’S USE ONLY the circuitry as follows: 13. Reconnect the high-voltage transformer primary windings.

W11175370A 2 Measure resistance of the fuse, microswitches and thermostats. 3 4 Replace any failed components. (Refer to the wiring diagram.)

Check for loose terminals. (Refer to the wiring diagram.) Check all of the terminals on the main route from the power supply to the high-voltage transformer.

FOR SERVICE TECHNICIAN’S USE ONLY FOR SERVICE TECHNICIAN’S USE ONLY FOR SERVICE TECHNICIAN’S USE ONLY FOR SERVICE TECHNICIAN’S USE ONLY

TOUCH PANEL PARTS LAYOUT (NOT TO SCALE) COMPONENT TESTS Components Test/Results Components Test/Results FC Ring Heater AC Line Filter Board Touch Panel and ACU PCBA Test AF A. Hood fan motor assembly Q. Monitor interlock switch IMPORTANT: 1. Unplug microwave oven or 1. Unplug microwave oven or AE B. FC thermistor R. Primary interlock switch FC Thermoactuator disconnect power. Thermostats disconnect power. The microwave hood combination is provided with a self-diagnostic routine that can be accessed through the touch keypad. AD A B CD C. Cavity light holder S. Cavity light fade in fade out Unplug microwave oven or disconnect power. Conduct a microwave energy test after performing any tests or AC T S R Q P2 E D. Cavity light repairs to the microwave oven. Power Resistor 2. Remove wire leads. FC / Magnetron/ Cavity 2. Remove wire leads. To initiate this routine: 3. Open door. The model number will be displayed. E. FC thermoactuator PCBA Discharge the high-voltage capacitor and remove the lead wires 3. Measure resistance: Thermostat 3. Measure resistance: AB F F. Power resistor T. Display board from the primary winding of the high-voltage transformer before Check that all wire leads are in the correct positions before 1. Plug in microwave oven or reconnect power and press CANCEL to 4. Close door. All display segments will be lit. AA G. H.V. capacitor U. Lens conducting any of the following tests. operating the microwave oven. Normal: 9 +/-3 ohms Normal: L-IN to L-OUT Standby (“:”). Z G H. H.V. diode V. Turntable motor (coil): Less than 1 ohm; N-IN NOTE: If the Cancel keypad is pressed during this diagnostic routine, Y H I. Magnetron thermostat— W. Touch sensor PCBA Remove the lead wires from the related component before Grasp wire connectors when removing the wire leads from 1. Unplug microwave oven or to N-OUT (coil): Less than 2. Close door, then press CANCEL – CANCEL – START within you will exit the test mode. X X. Hood (cooktop) light (2) conducting any of the following tests. microwave oven parts. disconnect power. 1 ohm 3 seconds. WVU I opens at 293ºF (145ºC), Y. Hood (cooktop) light holder (2) J closes at 230ºF (110ºC) Z. AC line lter board All operational checks using microwave energy must be done with All testing must be done with an ohmmeter having a sensitivity 2. Remove wire leads. NOTE: Refer to “Parts Layout” for All display segments will be lit to indicate the test mode has been K J. Magnetron AA. Main fuse (20 amp) the microwave oven loaded with a minimum of 8 oz (250 mL) of of 20,000 ohms per volt DC or greater and powered by at least 3. Measure resistance: opening and closing temperatures. entered. In the upper left corner of the display, the condition of L K. H.V. transformer AB. FC thermostat— water in a microwave-safe container. a 9-volt battery. 1. Unplug microwave oven or the ACU PCBA will be displayed (“GOOD”), or the most recent M L. Motor capacitor Normal: 1.2k +/-0.5k ohms error code. N M. Cooling fan motor opens at 329ºF (165ºC), 1. Unplug microwave oven or disconnect power. N. Hood fan thermistor closes at 257ºF (125ºC) 2. Remove wire leads. Key Tables for Test Mode O. ACU PCBA AC. FC motor Components Test/Results Components Test/Results disconnect power. 3. Measure continuity: P1. Secondary interlock switch AD. FC ring heater H.V. Transformer Turntable Motor 2. Remove wire leads. AE. Humidity sensor 1. Unplug microwave oven or 1. Unplug microwave oven or 3. Measure resistance: Normal: Continuity P2. Door interlock switch AF. Cavity thermostat— Filament disconnect power. FC Motor disconnect power. Key Name Function Display Buzzer Key Name Function Display Buzzer opens at 329°F (165°C), (orange/red wires) Humidity Sensor Normal: 20 ohms/25W UI: xx.xx.xx Yes Timer Set/Off 1 beep non-resettable 2. Remove wire leads. 2. Remove wire leads. Start/Add 1 min Display UI SW, ACU: xx.xx.xx Options/Clock Erase Service GOOD 1 beep Primary 3. Measure resistance: WH 3. Measure resistance: ACU PCB SW, TH: xx.xx.xx 1 beep Error Records Secondary (white RD Touch SW, EE: xx.xx.xx 1 beep Convect Bake 1 beep wire – ground to Primary winding: Less than BK Normal: 2.4k to 3.2k ohms EE PROM data Gee: xx.xx.xx 1 beep Convect Roast Error history If no error history: 1 beep transformer case) 0.5 ohm (approximate) Resistor (approximate) SCHEMATIC DIAGRAM version and 1 beep 1 check GOOD 1 beep Gee version key 30 1 beep 2 1 beep Magnetron Secondary winding: 120 Hood Fan Motor 1. Unplug microwave oven or key 28 1 beep 3 If error history: 1 beep ohms (approximate) disconnect power. Hood light – key 08 1 beep FxEx FxEx… O H.V. Capacitor Hood Fan Thermistor Secondary Magnetron key 13 1 beep 4 1 beep Filament winding: 0 ohms 2. Remove wire leads. Interlock Thermostat key 05 1 beep FC function and 000-0150 1 beep Motor Capacitor FC Thermistor 3. Measure resistance: Switch High-Voltage Vent Fan – key 14 FC NTC check 1 beep P1 Primary winding to 2 4 BU WH BU WH Components key 09 1 beep Cooling Fan Motor grounding: Normal: In nite Normal: 23 to 25 ohms L Cavity Reheat – key 06 – key 53 1 beep Motor BU BU Magnetron 000-0120 H.V. Diode Filament winding to 1. Unplug microwave oven or Cy Thermiostat Capacitor WH FA 1 beep grounding: Normal: In nite disconnect power. F Popcorn – Cavity Light On Cavity Light POWER OUTPUT MEASUREMENT R CxWH P5-4WH LN BU Red Tube 1 beep 1. Unplug microwave oven or 2. Remove the 3-pin connector Cy RD P6-5 RD 1Fad In 2 Black Tube Defrost – disconnect power. from the electronic control (P6). AC 120V/125V 60Hz WH P5-2 Cavity Light and Light and 1 beep The power output of the magnetron can be measured using the Measure Voltage NOTE: Do not remove the POWER CORD YL YL Fad Out Monitor Turntable On Turntable following “Voltage Measurement at Power Source” and “Output Test.” 2. Remove wire leads. attached resistor which is BU BU PCBA Interlock CF Black Tube Potato – Before you perform the test: 3. Measure resistance: used for internal resistance LN Switch TT RD calibration. P6-3 WH Make sure that the oven cavity is cool and clean. Filament terminal: Normal: P5-1 Soften/Melt – TT, CL, MW MW Turbo On Less than 1 ohm 3. Measure resistance across pins G YL/GN HL HL HF P23 P24 H.V. Relay 4913 & Check the line voltage at the wall outlet while microwave oven 1 and 3 and across pins 2 and 3: Capacitor 4903 (1000W) is operating. See “Voltage Measurement at Power Source.” Filament to chassis: Normal: P5-5 CL BK Vegetable – On for 10 In nite Normal: 2.8k ohms RD RD WH WH seconds (approximate) at 77ºF (28ºC) P6-1 Warm Hold Hood NTC 1. Unplug microwave oven or +/-18ºF (-10ºC) BK GY BK ambient disconnect power. temperature 1. Unplug microwave oven or WH check 2. Remove wire leads. disconnect power. BK 3. Measure resistance: – key 34 Tools Needed 2. Remove wire leads. Fuse Primary H.V. Terminal to terminal: 3. Measure resistance: 20AMP L Interlock Diode 2-cup measuring cup Normal: Momentarily BKP4-1 Switch FC Heater H.V. Thermometer indicates several ohms and High Speed—Normal: Red BU Transformer Cook Humidity 7000-9999 1 beep 5 – key 35 Voltmeter/ohmmeter A B then gradually returns to (RD) and Blue (BU) wires: 1 3 RD P1-1 BR P4-3 GN Sensor Check 6 Hood Light High in nite. 70 to 100 ohms (approximate); AC Line Filter P1-3 OR BU Do o r RD 7 Hood Light Hood Light Low Blue (BU) and Black (BK) wires: P4-4 YL P4-6 GY Cement R P2-2 Interlock P2-1 WH P4-2 RD WH 8 Relay 4910 On Hood Fan HIGH Terminal to case: Normal: 30 to 60 ohms (approximate) FC TH FCM P2-3 BUSwitch BK 9 Hood Fan LOW In nite Low Speed—Normal: Red (RD) and RD P4-5 BK 0 Hood Light MW Blue (BU) wires: 70 to 100 ohms P2-3 GN Cook Time/ Failure history If no error history: 1 beep Relay 4909 On C 1. Unplug microwave oven or (approximate); BU FC Power check GOOD Cancel – disconnect power. Blue (BU) and White (WH) wires: Thermostat Vent Fan Relay 50 to 80 ohms (approximate) If error history: 4911 On (High 2. Remove wire leads. FC-V N HL L R HF N CF DOOR N NFS TTM P6 FxEx YY FxEx YY… Speed) 3. Measure motor capacitor: 1. If “NTC SHORT, CALL FOR Hum Voltage Measurement at Power Source SERVICE” or “NTC OPEN, 68K 33K No Nc Sensor Vent Fan On Normal: Momentarily 0 CALL FOR SERVICE” scrolls on 33K Relay 4911 Off ohms, then goes to in nite display, unplug microwave oven YL/GN MW Relay (Low Speed)x or disconnect power. 2 4903 1. Unplug microwave oven or DWG NO.: MU-152-T (Rev. B) FC Motor 1 H TT, CL, MW disconnect power. 2. Measure resistance: CONDITION: DOOR OPEN Relay Kids Menu – key 10 1 beep Relay 4903 1. Fill the measuring cup with 2 cups (500 mL) of tap water. SYMBOL NOTES: 4914 HF relay CF Relay TT Relay SMPS BU RD (900W) On for 2. Remove wire leads. Normal: 10k ohms +/-5% at 4911 4901 4902 – key 45 1 beep 10 Seconds 2. Place in the center of the microwave oven cavity. 3. Measure resistance: 77ºF (25ºC) MW TURBO P9 TRIAC TRIAC Fuse Relay 4913 Hood Exit Test Mode 3. Operate the microwave oven on high power for 1 minute. Normal: 40 to 60 ohms 1. Unplug microwave oven or 7919 7915 FC Relay Thermistor (approximate) disconnect power. 4904 PCBA > 4. While the microwave oven is operating, measure the line voltage at BK WIRE COLOR the power source. See “Measure Voltage” illustration. A. House power supply wall outlet NOTE: Some inexpensive meters 2. Remove wire leads. Turntable – key 29 1 beep B. Voltmeter/ohmmeter test leads may indicate in nite resistance in 3. Measure resistance: P6-1 PIN NO.–1 P12 key 46 1 beep 5. Verify the voltage is constant during microwave oven operation. If C. Microwave oven plug both directions. > voltage drops below 108V, contact a quali ed electrician to check 1. Unplug microwave oven or Normal: 17k +/-20% ohm CONNECTOR FC Sensor – key 27 1 beep your electrical supply. at 77ºF (25ºC) NAME disconnect power. 6. Make note of the voltage while the microwave oven is running, and 2. Measure resistance: proceed to the output test. Forward: Normal: Continuity Select Choice – ACU PCBA: Appliance Control Unit Printed Circuit Board Assembly Reverse: Normal: In nite P1/P2/P4/P5/P6/P9/P12/P23/P24: Connectors Output Test HL Hood (Cooktop) BK CL Cavity BK: Black OR: Orange 7 Light WH Light BU: Blue YL: Yellow BU HF Hood Fan RD: Red GR: Green Motor WH: White GY: Gray 1. Fill the measuring cup with 2 cups (500 mL) of 70ºF (21ºC) tap water. 8. Using the following chart, determine if the output of the microwave P5 Forced YL T T Turntable BR: Brown YL/GN: Yellow/Green oven is within the range listed based on the line voltage and wattage 3551 FCM Convection Motor RD Motor 2. Stir the water with the thermometer to ensure uniform temperature. rating of the microwave oven. Add warm or cool water to bring the water to the correct temperature. Water Temperature for Line Voltage and Wattage Rating

3. Place the measuring cup in the center of the microwave oven cavity. Voltage 700W 1000W 1200W

4. Operate the microwave oven on high power for 1 minute. 120V 96ºF to 102ºF 110ºF to 116ºF 124ºF to 130ºF (36ºC to 39ºC) (43ºC to 47ºC) (51ºC to 54ºC) 5. Remove the measuring cup and stir the water with the thermometer W11175370A for about 20 seconds. 108V 91ºF to 97ºF 101ºF to 107ºF 111ºF to 117ºF NOTE: This sheet contains important Technical Service Data. (33ºC to 36ºC) (38ºC to 42ºC) (44ºC to 47ºC) 6. Record the temperature of the water. FOR SERVICE TECHNICIAN ONLY DO NOT REMOVE OR DESTROY 7. Refer to the model serial tag on the microwave oven to acquire wattage output rating of the microwave oven. 11/17

W11175370A FOR SERVICE TECHNICIAN’S USE ONLY

©2017. All rights reserved.

5 6