Fan Motor (M1F) Lock, Overload - Daikin VRV-WIII RWEYQ72PTJU Service Manual

SiUS30-1301
3.4

Fan Motor (M1F) Lock, Overload

A6
Error Code
Applicable
FXAQ, FXFQ, FXHQ
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
 Broken wires in, short circuit of, or disconnection of connectors from the fan motor harness
Supposed
 Defective fan motor
Causes
 Abnormal signal output from the fan motor (defective circuit)
 Defective PCB
 Instantaneous disturbance in the power supply voltage
 Fan motor lock
 The fan does not rotate due to foreign matters blocking the fan.
 Disconnection of the connector between the high-power PCB (A1P) and the low-power PCB
Service Diagnosis
(Broken wires or defective insulation)
(Due to motor or external causes)
(A2P).
Troubleshooting by Indication on the Remote Controller
155