Indoor Fan Motor (Dc Motor) Or Related Abnormality - Daikin FTXR-T Series Service Manual

Troubleshooting
4.4

Indoor Fan Motor (DC Motor) or Related Abnormality

A6
Error Code
Method of Error
The rotation speed detected by the Hall IC during indoor fan motor operation determines abnormal
Detection fan motor operation.
Error Decision The detected rotation speed does not reach the demanded rotation speed of the target tap, and is
Conditions less than 50% of the maximum fan motor rotation speed.
Supposed  Remarkable decrease in power supply voltage
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
74
SiUS041829E
Part 6 Service Diagnosis