20
Notes
· High voltage is applied to the connector (CNF1) for the fan motor. Give attention to the service.
· Do not pull out the connector (CNF1) of the motor with the power supply on.
(It may damage of the outdoor controller circuit
board and fan motor.)
Self check
Symptom : The outdoor fan does not run.
Check method of DC fan motor (fan motor / outdoor controller circuit board)
No
Wiring contact check
Contact of fan motor connector (CNF1)
Wiring recovery
END
END
Replace fan motor.
Replace
outdoor controller circuit board.
Replace outdoor control circuit board.
Replace outdoor control circuit board.
Replace fan motor.
Replace fan motor.
Check
fan motor rotation.
Check
fan motor rotation.
Is the voltage normal?
Is the fuse normal?
Is there no contact failure?
Check fuse (F5) on outdoor control
circuit board.
Yes
No
No
Yes
Yes
Power supply check
Measure the voltage on the outdoor controller circuit. (The connector CNF1 is removed.)
TEST POINT
V
DC
DC280-330V (between 1 (+) and 4 (-) of CNF1)
V
DC
DC15V
(between 5 (+) and 4 (-) of CNF1)
NG
OK
NG
OK
Summary of Contents for PUHZ-W90VHA
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