Daikin RZP100DVAL [148/255] Method of malfunction detection

Daikin RZP140DTAL [148/255] Method of malfunction detection
SiE25-110 Troubleshooting by Remote Controller Display / LED Display
Troubleshooting 139
6.7 Malfunction of Indoor Unit Fan Motor
Remote
Controller
Display
A6
Applicable
Models
FHYCP
Method of
Malfunction
Detection
Detection of abnormal fan speed by signal from the fan motor
Malfunction
Decision
Conditions
When fan speed does not increase
Supposed
Causes
Disconnection, short circuit or disengagement of connector in fan motor harness
Faulty fan motor (disconnection, poor insulation)
Abnormal signal from fan motor (faulty circuit)
Faulty PC board
Instantaneous fluctuation of power supply voltage
Fan motor lock
(Caused by motor or other external factors)
Fan does not turn due to a tangle of foreign matters.

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