Indoor Fan Motor Didn’t Work; Outdoor Fan Motor Didn’t Work - Westinghouse WPAXH-060CA4 Service Manual

WESTINGHOUSE PACKAGE A/C MANUAL
8). P4：Protection for High/Low Pressure or exhaust temp. (High pressure protection value：4.4MPa,
High pressure protection value：0.14MPa；air discharge temp. protection value: 130℃ above)
When P4 display, detect High/Low pressure
testing point by pressure gauge and discharge
point temp. by thermometer. Conform if all testing
values are normal.
Yes
Detect by multi-meter if the high/low pressure
switch two sides and air discharge switch two
sides exist current circuit.
Yes
Replace the main board.
9). Indoor fan motor didn't work.
Detect if there exist current from main
board to indoor fan.
Yes
Replace indoor fan capacitor, detect it
again, Conform if the indoor fan works.
Yes
Remove the problem
10). Outdoor fan motor didn't work.
Detect if there exist power supply from
main board to outdoor fan.
Yes
Replace the capacitor of outdoor fan,
detect it again, if the outdoor fan work.
Yes
Remove the problem
No
The main board display P4 is
normal.
No
No
Replace the main board.
No
Replace the indoor fan.
No
Replace the main board.
No
Replace outdoor fan.
R-410A : 220V: 60Hz
Replace high/low pressure switch
and air discharge temp. switch,
detect them again.
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