Service diagnosis
Domestic air conditioner
10.4.4 Outdoor DC fan motor fault
Outdoor display LED1 flash 9 times
Method of DC fan motor is detected by checking the fan running condition and so on
Malfunction
Detection
Malfunction
Decision
Conditions
Supposed
DC fan motor protection dues to the DC fan motor faulty
Causes
DC fan motor protection dues to faulty PCB
Troubleshooting * Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage
may be occurred.
39
when the detected rotation feedback signal don’t received in 2 minutes
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