Fan Motor (Dc Motor) Or Related Abnormality - Daikin FTXS20K2V1B Service Manual

Inverter pair wall mounted type ftxs/atxs-k series
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SiBE041134EB
4.4

Fan Motor (DC Motor) or Related Abnormality

A6
Error Code
Method of Error
The rotation speed detected by the Hall IC during fan motor operation is used to determine
abnormal fan motor operation.
Detection
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
Service Diagnosis
Disconnection of connector
Foreign matter 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
Troubleshooting
63

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