Samsung AQ09MSBN Service Manual page 44

12-5 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 37k ~ 8.3k (-7 C~+30 C)
, 0 . . . 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
, 0 . . . 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
, 0 . . . Open or Short
Abnormal
Measure the resistance between the red wire and each terminal wire with a tester.
Normal About 300 at the normal temperature (20 C ~ 30 C)
, 0 . . . Open or Short
Abnormal
Breakdown Inspection Method
Resistance
404.4 ± 10%
340 ± 10%
Resistance
360 ± 10%
328 ± 10%
Operating Instructions and Installation
*Refer to Table 12-3-4.
Remark
Main
Sub
Remark
Main
Sub
12-8