Whirlpool MH1150XMQ Tech Sheet Download Page 3 | Manualshive

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TECH SHEET - DO NOT DISCARD

PAGE 3

FOR SERVICE TECHNICIAN'S USE ONLY

PART NO. 8184997

/4619-651-98301

1

2

3

4

5

1

2

3

4

5

MAGNETRON

HIGH

VOL

T

AGE

COMPONENT

YELLOW/

WHITE

H.V

.

H.V

.

CAP

ACIT

OR

DIODE

BLACK

POWER

CORD

FUSE

&

FUSE

SADDLE

POWER

H.V

.

TRANSFORMER

ELECTRONIC

CONTROL

BOARD

CA

VITY

LAMP

&

LAMP

HOLDER

THERMOST

AT

MAGNETRON

THERMOST

AT

1

CA

VITY

BLACK

WHITE

UPPER

INTERLOCK

SUPPOR

T

LOWER

INTERLOCK

SUPPOR

T

SWITCH

INTERLOCK

SECONDAR

Y

WHITE

BLACK

INTERLOCK

PRIMAR

Y

SWITCH

1

THERMOST

AT

EXHAUST

F

AN

RED

BLUE

GRA

Y

ORANGE

WHITE

BLACK

WHITE

MONIT

OR

INTERLOCK

SWITCH

WHITE

WHITE

BLACK

BLACK

WHITE

HOOD

LAMP

HOLDER

HOOD

LAMP

&

WHITE
WHITE

RED

YELLOW/ WHITE

ORANGE/

RED

WHITE

ORANGE/

RED

ORANGE/ RED

WHITE

F

FA

BROWN

GREEN

MOT

OR

CAP

ACIT

OR

MOT

OR

5

4

2

1

1
2

4
5

RED

WHITE

WHITE

TURNT

ABLE

SIX

POLES

CONNECT

OR

P5

BLUE

BLUE

RED

4903

1

2

WHITE

BLACK

WHITE

WHITE

BLACK

WHITE

WHITE

ORANGE

BLUE

BLUE

BROWN

P2

5100

U1

DWG

NO.

L-M1-075

BLUE

THERMOST

AT

2

CA

VITY

1

P4

1

P3

BROWN

BROWN

GRA

Y

ORANGE

WHITE

BLUE

BLUE

BLUE

WHITE

BROWN

BLACK

WHITE

BLUE

BLACK

WHITE

BLUE

YELLOW

RED

YELLOW

RED

GREEN

BROWN

RED

YELLOW

WHITE

ORANGE

GRAY

WHITE

WHITE

BROWN

RED

SIX

POLES

CONNECT

OR

P0

BROWN

WHITE

WHITE

WHITE

WHITE

BROWN

ORANGE

GRA

Y

P1

HOOD FAN

MOTOR

ASSEMBLY

RED

PICTORIAL DIAGRAM

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Summary of Contents for MH1150XMQ

Page 1: ...the window area of the door is broken 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 Display Likely Failure Condition Recommended Repair Procedure Flashing colon Power failure After a power failure the colon will be flashing Press any key to end this indication The colon will then be s...

Page 2: ...1 MW 2 B 40 R 21 R 24 BL 37 R W OR R OR R Capacitor Y W Exhaust Fan Thermostat 31 W 34 W 29 G 5P5 4P5 HL 28 BR 30 Y GND 38 Y G L1 P2 L V T Prim Sec TR1 5100 N1 1 HL Night Light Hood Light L G N G B W 120V 60Hz Cavity Thermostat 2 F L TTM 13 GR 1 26 W 20 AMP 13 GR 16 R 14 OR Y B BL Fan On Off 8 R 10 BL 11 W HF2 HF1 FT 1P0 5P0 1 P3 P4 Cavity Thermostat 1 TCO 1 BL TT CAVITY LAMP TURNTABLE MOTOR HOOD ...

Page 3: ...CK WHITE MONITOR INTERLOCK SWITCH WHITE WHITE BLACK BLACK WHITE HOOD LAMP HOLDER HOOD LAMP WHITE WHITE RED YELLOW WHITE ORANGE RED WHITE ORANGE RED ORANGE RED WHITE F FA BROWN GREEN MOTOR CAPACITOR MOTOR 5 4 2 1 1 2 4 5 RED WHITE WHITE TURNTABLE SIX POLES CONNECTOR P5 BLUE BLUE RED 4903 1 2 WHITE BLACK WHITE WHITE BLACK WHITE WHITE ORANGE BLUE BLUE BROWN P2 5100 U1 DWG NO L M1 075 BLUE THERMOSTAT ...

Page 4: ...1 071 ELECTRONIC CONTROL BOARD 1 4903 1 2 P2 5100 U1 1 P4 1 P3 TURNTABLE MOTOR RED H V TRANSFORMER TURNTABLE MOTOR COOKTOP LAMP CAVITY LAMP EXHAUST FAN THERMOSTAT WHITE RED GREEN GRAY BROWN COOKTOP LAMP EXHAUST FAN THERMOSTAT HOOD FAN MOTOR INTERLOCK PRIMARY INTERLOCK SECONDARY YELLOW BLUE WHITE BLACK WHITE ORANGE P1 PICTORIAL DIAGRAM ...

Page 5: ... terminal Orange wire Monitor Disconnect the wires at the Monitor Switch Check from the common terminal White Blue wires to the normally closed terminal Red wires Continuity No Continuity NOTE These diagrams are not intended to show a complete circuit they represent the position of switches during DOOR OPEN and DOOR CLOSED continuity checks only PRIMARY SECONDARY AND MONITOR INTERLOCK SWITCH CHECK...

Page 6: ...or and while still depressing the CANCEL OFF button unplug the microwave oven for two seconds and plug it back in 2 Release the CANCEL OFF button and then close the door 3 Now by pressing each button on the control panel the number 8 will appear in the display to indicate that the circuits are complete and all relays are working NOTE If the CANCEL OFF button is pressed during this diagnostic routi...

Page 7: ...kΩ HIGH VOLTAGE SYSTEM MAGNETRON THERMOSTAT PRIMARY INTERLOCK SWITCH MONITOR SWITCH BL TT ON OFF RELAY F L CAVITY THERMOSTAT 2 MICROWAVE MICROCOMPUTER BOARD CAVITY THERMOSTAT 1 BL RELAY R BR GR BL B CAVITY LIGHT G W W 4P4 CAV LT DOOR RELAY R 6P4 2 1 W B W L1 B B N TT R BR W BL W 3P3 4P3 B FAN HIGH LOW RELAY MOTOR CAPACITOR B R R Y Y BL BL W FAN ON RELAY LOW VOLTAGE TRANSFORMER MICROWAVE COOKING BL...

Page 8: ...Y FUSE 20 AMP BLOWER FAN ON LOW TRANSFORMER MICROCOMPUTER BOARD N CAVITY THERMOSTAT 2 CAVITY THERMOSTAT 1 W BL B R BR 1P2 3P2 LOW VOLTAGE G W L1 BR FUSE 20 AMP MICROWAVE PLUGGED IN TIME OF DAY DISPLAYED MICROCOMPUTER BOARD L1 OVEN CAVITY LIGHT LOW VOLTAGE TRANSFORMER ACTIVATED BY OPENING AND CLOSING MICROWAVE DOOR CAV LT DOOR RELAY N CAVITY THERMOSTAT 2 CAVITY THERMOSTAT 1 W BL B BR 1P2 3P2 4P4 B ...

Page 9: ...AVITY THERMOSTAT 2 CAVITY THERMOSTAT 1 BL B R FUSE 20 AMP 1P2 3P2 1P3 LOW VOLTAGE W W Y W W G DIODE NIGHT LIGHT ON RELAY COOKTOP LIGHT ON LOW NIGHT LIGHT MICROCOMPUTER BOARD COOKTOP LIGHT L1 BR TRANSFORMER BR N CAVITY THERMOSTAT 2 CAVITY THERMOSTAT 1 BL B R 1P2 3P2 1P3 LOW VOLTAGE W W Y W W G HOOD LIGHT ON RELAY FUSE 20 AMP COOKTOP LIGHT ON HIGH B BL BR G R W Y BLACK BLUE BROWN GREEN RED WHITE YEL...

Page 10: ...terminal Terminal to case Normal Momentarily indicates several ohms gradually returns to Infinite Normal Infinite H V Diode 1 Measure continuity ohmmeter scale Rx1k Forward Normal Continuity Abnormal Infinite Some inexpensive meters may indicate infinite resistance both directions 2 Measure continuity ohmmeter scale Rx1k Reverse Normal Infinite Abnormal Continuity CONTINUED Chassis COMPONENT TESTS...

Page 11: ...d Black wires For Low Speed Red and Blue wires Blue and White wires Normal 79 119 ohms approximate 22 43 ohms approximate 79 119 ohms approximate 43 62 ohms approximate Abnormal Infinite Thermostats NOTE Refer to Parts Layout on page 5 for opening and closing temperatures 1 Remove wire leads 2 Cavity and Magnetron Thermostats Measure continuity ohmmeter scale Rx1 Normal Continuity Abnormal Infinit...

Page 12: ...PAGE 12 TECH SHEET DO NOT DISCARD PART NO 8184997 4619 651 98301 FOR SERVICE TECHNICIAN S USE ONLY This page is intentionally blank ...

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