Daikin VRV S RXMQ10ARY1, Service Manual, Page: 207 / 377

SiAF332111E Troubleshooting by Error Code
Part 6 Service Diagnosis 201
5.6 Indoor Fan Motor Lock, Overload
Applicable
Models
FXMQ40PB, FXAQ-P
Error Code
A6
Method of Error
Detection
Abnormal fan revolutions are detected by a signal output from the fan motor.
Error Decision
Conditions
The fan revolutions do not increase.
Supposed
Causes
 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 control 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 and the low-power PCB:
FXMQ40PB