Sears 721.80522500 Manual page 28

COMPONENTS
VENTILATION MOTOR
TURNTABLE MOTOR
ABSOLUTE HUMIDITY
SENSOR
(FOR SENSOR MODEL)
STIRRER MOTOR
TEST
1. Remove lead wires.
2. Measure resistance.
(ohm meter scale: Rx1)
High Speed: BL & BK Wire
Low Speed: BL & WH Wire
1. Remove wire leads.
2. Measure resistance.
(ohm meter scale: Rx1000)
1. Disconnect sensor connector from micom
computer board.
2. Measure resistance terminal to terminal (ohm
meter scale: R X 1000)
1. Remove lead wires.
2. Measure resistance.
(ohm meter scale: Rx1)
7-17
BK
1
RD
2
3 WH
RESULTS
Normal:
High Speed: Approximately
60 to 75 ohms
Low Speed: Approximately
115 to 125 ohms
Normal: Approximately
2.5 to 3.5 Kohms
Abnormal:
Infinite or several.
Normal:
Approximately
BK-RD: 6.0 Kohms
RD-WH: 3.0 Kohms
BK-WH: 3.0 Kohms
Abnormal:
Infinite or approx. 0 ohm
Normal:
Approximately 120 to 135 ohms
Abnormal: Infinite