SiBE121135_A Troubleshooting for RA Indoor Unit
Service Diagnosis 176
5.3.2 AC Motor (Floor / Ceiling Suspended Dual Type, Duct Connected Type)
Error Code A6
Method of Error
Detection
The rotation speed detected by the Hall IC during fan motor operation is used to determine
abnormal fan motor operation.
Error Decision
Conditions
The detected rotation speed does not reach the demanded rotation speed of the target tap, and
is less than 50% of the maximum fan motor rotation speed.
Supposed
Causes
Power supply voltage is not as specified.
Layer short inside the fan motor winding
Breaking of wire inside the fan motor
Breaking of the fan motor lead wires
Defective capacitor of the fan motor
Defective indoor unit PCB
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