Troubleshooting by Indication on the Remote Controller
57
3.6
A6
Overload/Overcurrent/Lock
of Indoor Unit Fan Motor
Remote Controller Display
A6
Applicable Models
R-22: FXM40~125L
R-410A: FXMQ50~140P
Method of Error Detection
Detection from the current flow on the fan PCB.
Detection from the RPM of the fan motor in operation.
Detection from the position signal of the fan motor.
Detection from the current flow on the fan PCB when the
fan motor starting operation.
Error Decision Conditions
An overcurrent flows.
The RPM is less than a certain level for 6 seconds.
A position error in the fan rotor continues for 5
seconds or more.
An overcurrent flow.
Supposed Causes
The clogging of a foreign matter
The disconnection of the fan motor connectors
The disconnection of the connectors between the
indoor unit PCB and fan PCB
Defective fan PCB
Defective fan motor
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