A6 Indoor Unit: Fan Motor (M1F) Lock, Overload - Daikin RXYQ96PYDN Service Manual

Troubleshooting by Indication on the Remote Controller
A6
3.4 Indoor Unit: Fan Motor (M1F) Lock, Overload
A6
Remote
Controller
Display
Applicable FXAQ, FXFQ
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
340
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).
SiUS34-801A_b
Troubleshooting