Fan Motor (Dc Motor) Or Related Abnormality - Daikin FTX20K(2)V1B Service Manual

SiBE041525F
4.4

Fan Motor (DC Motor) or Related Abnormality

A6
Error Code
The rotation speed detected by the Hall IC during fan motor operation is used to determine
Method of Error
abnormal fan motor operation.
Detection
The detected rotation speed does not reach the demanded rotation speed of the target tap, and
Error Decision
is less than 50% of the maximum fan motor rotation speed.
Conditions
 Disconnection of connector
Supposed
 Foreign matter stuck in the fan
Causes
 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
Service Diagnosis
Troubleshooting
52