MXS Service Manual

Troubleshooting for SA Indoor Unit SiUS121736EA
167 Service Diagnosis
6.3.2 Indoor Fan Motor (DC Motor) or Related Abnormality
Applicable
Models
FFQ09/12/15/18Q2VJU
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 fan motor is not revved up.
Supposed
Causes
 Layer short inside the fan motor winding
 Breaking of wire inside the fan motor
 Breaking of the fan motor lead wires
 Defective indoor unit PCB