Maytag UMV1152BAB/W/Q/S Service page 20

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Testing Procedures
To avoid risk of electrical shock, personal injury or death; disconnect power to oven and discharge the high voltage
capacitor before servicing, unless testing requires power.
Illustration
Magnetron Thermal
Cut-Out (Thermostat)
MMV5165A**,
MMV5207A**,
JMV8208A**
Magnetron Thermal
Cut-Out (Thermostat)
AMV4204A**,
MMV4205A**,
AMV5206A**
Oven Thermal Cut-
Out (Thermostat)
AMV4204A**,
MMV4205A**,
MMV5165A**,
AMV5206A**,
AMV5207A**,
JMV8208A**
Oven Thermal Cut-
Out (Thermostat)
(Non-resettable)
UMV1152B**,
MMV1153A**,
AMV1162A**,
AMV5164A**
Lamp receptacle
All Models
Fan motor
A
B
C
AMV4204A**,
MMV4205A**,
AMV5206A**,
MMV5207A**,
JMV8208A**
Fan motor
A
B
C
MMV5165A**
20
!
Component
Disconnect all wires from TCO.
Measure resistance across terminals.
Magnetron TCO.......................................
Disconnect all wires from TCO.
Measure resistance across terminals.
Magnetron TCO.......................................
Disconnect all wires from TCO.
Measure resistance across terminals.
Oven TCO ...............................................
Disconnect all wires from TCO.
Measure resistance across terminals.
Oven TCO ...............................................
Test continuity of receptacle terminals ......
Remove all wires from motor.
Measure resistance ...................................
Remove all wires from motor.
Measure resistance ...................................
16023056 Rev. 0
W ARNING
Test Procedure
Results
Open at 293°F (145°C) and closed at
140°F (60°C)
Open at 302°F (150°C) and closed at
32°F (0°C)
Open at 230°F (110°C) and closed at
0°F (32°C)
Open at 194°F (90°C)
Indicates continuity if bulb is good and
installed.
(All measurements approximate)
Across terminals A & C: 35-50 Ω
Across terminals A & B: 5-15 Ω
Infinite or several, motor is defective.
(All measurements approximate)
Across terminals A & C: 85-105 Ω
Across terminals A & B: 15-25 Ω
Infinite or several, motor is defective.
©2004 Maytag Services

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