A6 " Indoor Unit: Fan Motor (M1F) Lock, Overload - Daikin VRV III REYQ8PY1 Service Manual

Troubleshooting by Indication on the Remote Controller
A6
" " Indoor Unit:
3.4
A6
Remote
Controller
Display
Applicable FXAQ20~63MAVE, FXFQ25~125MVE
Models
Method of Abnormal fan revolutions are detected by a signal output from the fan motor.
Malfunction
Detection
Malfunction When the fan revolutions do not increase
Decision
Conditions
Supposed
Causes
234
Fan Motor (M1F) Lock, Overload
Broken wires in, short circuit of, or disconnection of connectors from the fan motor harness
Faulty fan motor
(Broken wires or faulty insulation)
Abnormal signal output from the fan motor (Faulty circuit)
Faulty PC board
Instantaneous disturbance in the power supply voltage
Fan motor lock
(Due to motor or external causes)
The fan does not rotate due to foreign matters blocking the fan.
Disconnection of the connector between the high-power PC board (A1P) and the low-power
PC board (A2P).
Si37-701
Troubleshooting