Fan Motor Or Related Abnormality - Daikin Super Multi NX FFQ25B8V1B Service Manual

SiBE121021_C
5.3

Fan Motor or Related Abnormality

5.3.1 DC Motor (Wall Mounted Type, Floor Standing Type)
A6
Remote
Controller
Display
Method of The rotation speed detected by the Hall IC during fan motor operation is used to determine
abnormal fan motor operation.
Malfunction
Detection
Malfunction 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.
Decision
Conditions
Supposed
Causes
Service Diagnosis
Troubleshooting for RA Indoor Unit - F(C)TXG, FTXS, ATXS, FVXS, FLK(X)S, FDK(X)S Series
Disconnection of connector
Foreign matters stuck in the fan
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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