Westinghouse WHU09DHA21S Service Manual page 26

2. Outdoor unit fan motor
DC motor
9K: SIC-52FV-F130-3
12K: SIC-62FV-D857-15
18K: ZWK511A805001
24K: SIC-71FW-D8121-1
36K: SIC-81FW-F1138-1
3. Compressor
Compressor examine and repair
9K/12K: ASN108D43UFZA
18K: ATM150D23UFZ
24K: EATF250D22UMT
36K: ATF310D43UMT
Power
Test in resistance.
TOOL: Multi-meter.
Test the resistance of the winding. The compressor fails if the resistance of winding is 0
(short circuit)or∞(open circuit).
Familiar error:
1) Compressor motor lock.
2) Discharge pressure value approaches static pressure value.
3) Compressor motor winding abnormality.
DC Inverter
&
Controller
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Thermal Sensor
Compressor