Troubleshooting for RA Indoor Unit SiUS121827E
170 Part 6 Service Diagnosis
5.3.2 Indoor Fan Motor (AC Motor) or Related Abnormality
Applicable
Models
FDXS09/12LVJU
CDXS15/18/24LVJU
Error Code A6
Method of Error
Detection
The rotation speed detected by the Hall IC during indoor fan motor operation determines abnormal
fan motor operation.
Error Decision
Conditions
The detected rotation speed does not reach the demanded rotation speed of the target tap.
Supposed
Causes
Power supply voltage out of specification
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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