Indoor Fan Motor Lock, Overload - Daikin RXQ12AHR Service Manual

SiAF341904E
5.4

Indoor Fan Motor Lock, Overload

Applicable FXMQ40PB, FXAQ-P
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
Causes  Defective fan motor
 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:
Part 6 Service Diagnosis
(Broken wires or defective insulation)
(Due to motor or external causes)
FXMQ40PB
Troubleshooting by Error Code
187