Indoor Fan Motor Lock, Overload - Daikin VRV RXYMQ-A Series Service Manual

Troubleshooting by Error Code
5.6

Indoor Fan Motor Lock, Overload

Applicable FXMQ40PB, FXAQ-AR
Models
A6
Error Code
Method of Error
Abnormal fan revolutions are detected by a signal output from the fan motor.
Detection
Error Decision
The fan revolutions do not increase.
Conditions
Supposed  Broken wires in, short circuit of, or disconnection of connectors from the fan motor harness
 Defective fan motor
Causes
 Abnormal signal output from the fan motor (defective circuit)
 Defective indoor unit control PCB
 Instantaneous disturbance in the power supply voltage
 Fan motor lock
 The fan does not rotate due to foreign matter blocking the fan.
 Disconnection of the connector between the high-power PCB and the low-power PCB
164
(Broken wires or defective insulation)
(Due to motor or external causes)
SiME332106E
Part 6 Service Diagnosis