Main Part Inspection Method - Samsung AQ18WJWB Service Manual

6-5 Main Part Inspection Method

Part
Room Temperature Sensor
Room Fan Motor
Outdoor Fan Motor
Stepping Motor
Samsung Electronics
Measure resistance with a tester
Normal At the normal temperature 37kΩ~ 8.3kΩ(-7˚C~+30˚C)
∞, 0Ω . . . Open or Short
Abnormal
Measure the resistance between terminals of the connector (CN72) with a tester.
Normal At the normal temperature (10˚C ~ 30˚C)
Compare terminal
Yellow, Blue
Yellow, Red
∞, 0Ω . . . Open or Short
Abnormal
Measure the resistance between motor wires with a tester.
Normal At the normal temperature (10˚C ~ 30˚C)
Compare terminal
Yellow, Red
Black, Yellow
∞, 0Ω . . . Open or Short
Abnormal
Measure the resistance between the red wire and each terminal wire with a tester.
Normal About 300Ω at the normal temperature (20˚C ~ 30˚C)
∞, 0Ω . . . Open or Short
Abnormal
Breakdown Inspection Method
Resistance
404.4Ω ± 10%
340Ω ± 10%
Resistance
360Ω ± 10%
328Ω ± 10%
*Refer to Table 6-4-4.
Remark
Main
Sub
Remark
Main
Sub
41