GE JVM1790CK01 Service Manual page 30

COMPONENTS
FAN MOTOR
(F.M)
CIRCULATION
MOTOR
(C.M)
VENTILATION
MOTOR
DAMPER MOTOR
(D.M)
TURNTABLE
MOTOR (T.M)
STIRRER MOTOR
(S.M)
THERMISTOR
TEST PROCEDURES
1. Remove wire leads.
2. Measure resistance.
(ohm meter scale: Rx1)
1. Remove wire leads.
2. Measure resistance.
(ohm meter scale: Rx1)
1. Remove wire leads.
2. Measure resistance.
(ohm meter scale: Rx1000)
1. Remove the connector from PCB.
2. Measure resistance across pins 1 & 3.
(ohm meter scale: Rx1)
Normal:
Approximately
F.M
35-55
ohm
ohm
Abnormal:
Infinite or several.
High (Black-Blue)
Medium (White-Blue)
Slow (Gray-Blue)
Normal: Approximately
D.M
2.3-3.5
Kohm
Abnormal:
Infinite or several.
Normal:
Approximately
250 to 350 Kohm at 68 ± 35°F
Abnormal:
Infinite or several.
7-18
RESULTS
C.M
20-35
ohm
35-45 ohm
50-60 ohm
75-90 ohm
T.M S.M
2.6-3.5 100-170
Kohm Kohm