Testing Procedures
!
WARNING
To avoid risk of electrical shock, personal injury or death; disconnect power to microwave oven and discharge the
high voltage capacitor before servicing, unless testing requires power.
© 2006 Maytag Services 16027303 15
Illustration Component Test Procedure Results
Convection heater element
JMV9169BA*,
JMV8166BA*,
AMV6167BD*
Remove all wires from heater.
Measure resistance across terminals ..........
Approx. 15-25 (70° F, 20° C).
Convection motor
JMV9169BA*,
JMV8166BA*,
AMV6167BD*
Remove all wires from motor.
Measure resistance across coil....................
Approx. 14.5 - 17 .
Primary interlock switch test
(Bottom switch)
1
2
Measure resistance between
terminals 1 and 2:
Door Open...................................................
Door Closed ................................................
Open (Infinite).
Continuity.
Secondary interlock switch
test
(Top switch)
Measure resistance between
terminals 1 and 2:
Door Open...................................................
Door Closed ................................................
Open (Infinite).
Continuity.
Interlock monitor switch test
(Middle switch)
1
2
Measure resistance between
terminals 1 and 2:
Door Open...................................................
Door Closed ................................................
Continuity.
Open (Infinite).
B
C
Fan motor
MMV4205BA*, AMV5206BA*,
MMV5207BA, JMV8208B**,
JMV9169BA*, JMV8166BA*,
AMV6167BD*
Remove all wires from motor.
Measure resistance .....................................
Approx. 28 - 35 .
Infinite or several, motor is defective.
Stirrer Motor
UMV1152CA*, AMV1154BA*,
AMV5164BA*, MMV1153BA*,
MMV5165BA*
Measure voltage across terminals ...............
Measure resistance across terminals ..........
Approx. 120 VAC.
Approx. 3 to 4 .
Stirrer Motor Measure voltage across terminals ...............
Measure resistance across terminals ..........
Approx. 120 VAC.
Approx. 108 to 132 k.
Turntable Motor
UMV1152CA*, AMV1154BA*,
AMV5164BA*, MMV1153BA*,
MMV5165BA*
Measure voltage across terminals ...............
Measure resistance across terminals ..........
Approx. 120 VAC.
Approx. 3 to 4 .
Turntable Motor Measure voltage across terminals ...............
Measure resistance across terminals ..........
Approx. 120 VAC.
Approx. 108 to 132 k.
Damper Motor
JMV9169BA*, JMV8166BA*,
AMV6167BD*
Measure voltage across terminals ...............
Measure resistance across terminals ..........
Approx. 120 VAC.
Approx. 3 to 4 k.
Louvre Motor
JMV8208B**, JMV9169BA*,
JMV8166BA*, AMV6167BD*
Measure voltage across terminals ...............
Measure resistance across terminals ..........
Approx. 120 VAC.
Approx. 3100 to 3900 k.