Fan Motor Lock, Overload - Daikin RXYQ-TA Series Service Manual

Troubleshooting by Error Code
3.4

Fan Motor Lock, Overload

A6
Error Code
Applicable
FXFQ, FXUQ, FXEQ, FXMQ07-12PB, FXAQ
Models
Method of Error
Abnormal fan revolutions are detected by a signal output from the fan motor.
Detection
Error Decision When the fan revolutions do not increase
Conditions
Supposed
Causes
179
Broken wires in, short circuit of, or disconnection of connectors from the fan motor harness
Defective fan motor
(Broken wires or defective insulation)
Abnormal signal output from the fan motor (defective circuit)
Defective indoor unit main PCB
Instantaneous disturbance in the power supply voltage
Fan motor lock
(Due to motor or external causes)
The fan does not rotate due to foreign matter blocking the fan.
Disconnection of the connector between the high-power PCB (A1P) and the low-power PCB
(A2P) (FXMQ07-12PB only)
SiUS341615E
Service Diagnosis