Fan Motor Or Related Abnormality - Daikin Super multi NX E Series Service Manual

Troubleshooting for RA Indoor Unit
5.3

Fan Motor or Related Abnormality

5.3.1 DC Motor (Wall Mounted Type, Floor Standing Type)
A6
Error Code
Method of Error
The rotation speed detected by the Hall IC during fan motor operation is used to determine
Detection abnormal fan motor operation.
Error Decision 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.
Conditions
Supposed
Causes
173
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
SiBE121135_A
Service Diagnosis