Manuals
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Microwave Oven
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Whirlpool
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Kitchen Appliance
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Microwave Oven
Whirlpool
1997 "E
- page 40
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40
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80 pages, 1.21 Mb
2-30
— NOTES —
Contents
Main
Page
TABLE OF CONTENTS
iii
Page
iv
IMPORTANT SAFETY INFORMATION
Fire Hazard
Electrical Shock Hazard
WARNING
NOTE
CAUTION
WARNING
CAUTION
WARNING TO SERVICE TECHNICIANS
OR
CAUTION
WARNING
R.F. LEAKAGE TEST
CAUTION
EQUIPMENT
TEST
THEORY OF OPERATION
1-2
N L1
3 1 11
N L1
3 1 13
COMPONENT SECTIONS
COMPONENT ACCESS
GENERAL
REMOVING THE MICROWAVE OVEN & CABINET
WARNING
2-3
Removing The Cabinet
THE PROTECTION CONTROL SYSTEM
REMOVING THE OVEN DOOR
REMOVING THE OVEN DOOR COMPONENTS
REMOVING THE CONTROL PANEL
TURN PANEL OVER
REMOVING THE LINE FUSE
REMOVING/ADJUSTING THE INTERLOCK SWITCHES
REMOVING A SWITCH
MAKING ADJUSTMENTS
2-9
1997 Whirlpool Corporation
INSET 1
Original March, 1997 4322167
Page 2-9
INSET 2
SECONDARY INTERLOCK
REMOVING THE BASE THERMAL FUSE
REMOVING THE MAGNETRON THERMAL FUSE
REMOVING THE CONVECTION THERMISTOR
2-13
Page 2-13
REMOVE FIVE AIR DUCT SCREWS
CONVECTION THERMISTOR
WHITE WIRES
REMOVING THE CAVITY THERMAL FUSE
THE OPERATING CONTROL SYSTEM
REMOVING THE OVEN LIGHT SOCKET
REMOVING THE CONTROL CIRCUIT BOARD & THE TURNTABLE INDICATOR CIRCUIT BOARD
TURN PANEL OVER
INSET
CONTROL BOARD
REMOVING THE FAN MOTOR
REMOVING THE POWER CORD
POWER CORD
REMOVING THE BLOWER MOTOR CAPACITOR
REMOVING THE CONVECTION HEATING ELEMENT
2-21
Page 2-21
REMOVE FIVE AIR DUCT SCREWS
VIEWED FROM UNDER TOP PLATE
REMOVING THE GAS SENSOR
REMOVING THE STIRRER MOTOR
REMOVING THE TURNTABLE MOTOR
REMOVING THE COOKTOP LIGHT SOCKETS
THE HIGH VOLTAGE COMPONENTS
ACCESSING THE COMPONENTS
REMOVING THE MAGNETRON
REMOVING THE HIGH VOLTAGE RECTIFIER AND THE HIGH VOLTAGE CAPACITOR
REMOVING THE HIGH VOLTAGE TRANSFORMER
Page
CAUTION
3-1
Warning To Service Technicians!
COMPONENT DESCRIPTION & TESTING
IMPORTANT SAFETY INSTRUCTIONS
Precautions to Avoid Possible Exposure to Excessive Microwave Energy
3-3
CAUTION
WARNING
THE THERMAL FUSES
THE BLOWER MOTOR CAPACITOR
R x 10K
THE GAS SENSOR
TESTING
1. Set the ohmmeter to the
R x 1
THE CONVECTION THERMISTOR
R x 10K
THE CONVECTION HEATING ELEMENT
TESTING
1. Set the ohmmeter to the
R x 1
MOTORS
Blower Motor
Fan Motor
Stirrer and Turntable Motors
PROGRAMMING CHECKS
f 2
f 1
CHARTS
Page
Page
CHECKING THE MICROWAVE POWER OUTPUT
CAUTION
CHECKING FOR MICROWAVE ENERGY LEAKAGE
EQUIPMENT
MAKING THE MEASUREMENTS
Measuring The Oven With The Cabinet Installed
.
Measuring The Oven With The Cabinet Removed
MEASURING MICROWAVE POWER OUTPUT USING THE IEC-705 RATING STANDARD
3-18
TEST CHARTS
R x 1000
COMPONENT TESTING
WARNING
ELECTRICAL SHOCK HAZARD
3-19
3-20
C.
N.C. CONTACTS N.O. CONTACTS
3-21
KEYBOARD MATRIX
3-22
CONTROL CIRCUIT BOARD CHECK LIST
3-24
CONTINUITY TEST CHART
DOOR OPEN
DOOR CLOSED
PRIMARY, MONITOR, & SECONDARY SWITCH CHECKOUT PROCEDURE
(+) = CONTINUITY () = NO CONTINUITY
4-1
Page 4-1
11
TECH TIPS
1
CN1 CN5
321 321
1 2 3 1 2 3
Model MH9115XE
CONTROL MODULE
BK = Black BR = Brown RD = Red YL = Yellow GN = Green BL = Blue PK = Pink WH = White
NOTES: 1. Oven is Off. 2. Door is Open.
TEMP PROBE
STRIP CIRCUITS
N
2. DOOR IS OPEN OVEN LIGHT IS ON
L1
1. UNIT IS PLUGGED IN CLOCK IS WORKING
4. BLOWER MOTOR IS ON HIGH
5. OVEN IS OFF CAVITY TEMPERATURE IS ABOVE 133F BLOWER MOTOR IS ON LOW
6. COOKTOP LIGHTS ARE ON HIGH OR LOW
N L1
3 1 11
7. MICROWAVE COOKING IS ON
8. CONVECTION COOKING IS ON
N L1
SPECIFICATIONS
4-7
Page 4-7
SPECIFICATION CHARTS
4-8
4-9
Page 4-9
4-10
4-11
Page 4-11
4-12
4-13
Page 4-13
4-14
4-15
MODEL & SERIAL NUMBER EXPLANATION
SERIAL PLATE LOCATION
4-16
WHIRLPOOL MICROWAVE HOOD WARRANTY
LENGTH OF WARRANTY
WHIRLPOOL WILL PAY FOR:
WHIRLPOOL WILL NOT PAY FOR: