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Boris_Duh.
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TheAChub
Fan Motor (M1F) Lock, Overload
Error Code A6
Applicable Models
FXFQ, FXHQ, FXAQ Method of Error Detection
Abnormal fan revolutions are detected by a signal output from the fan motor. Error Decision Conditions
When 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 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 matters blocking the fan.
Disconnection of the connector between the high-power PCB (A1P) and the low-power PCB
(A2P)
∗1.If any junction connector is provided between the connector (X20A) on the indoor unit PCB and the fan motor, also check whether or not the junction connector is properly connected.
∗2.Check on connector of fan motor (Power supply cable) Turn OFF the power supply.
Measure the resistance between phases of U, V, W at the motor side connectors (3-core wire) to check that the values are balanced and there is no short circuiting, while connector or relay connector is disconnected.
∗3.Check on connector of fan motor is not available for below models.
FXFQ09~48PVJU, FXAQ07~24PVJU
Indoor Unit Fan Motor Abnormality
Error Code A6
Applicable Models
FXDQ Method of Error Detection
This error is detected if there is no revolutions detection signal output from the fan motor. Error Decision Conditions
When no revolutions can be detected even at the maximum output voltage to the fan Supposed Causes
Defective indoor fan motor Broken wires
Defective contact 
Indoor Unit Fan Motor Abnormality
Error Code A6
Applicable Models
FXMQ-PB Method of Error Detection
Error from the current flow on the fan PCB Error from the RPM of the fan motor in operation
Error from the position signal of the fan motor
Error 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.
Supposed Causes
The clogging of a foreign matter The disconnection of the fan motor connectors (X1A and X2A)
The disconnection of the connectors between the indoor unit PCB (A1P) and fan PCB (A2P) Defective fan PCB (A2P)
Defective fan motor
Overload / Overcurrent / Lock of Indoor Unit Fan Motor
Error Code A6
Applicable Models
FXMQ-M Method of Error Detection
This error is detected by detecting that the individual power supply for the fan turns OFF. Error Decision Conditions
When it is not detected that the individual power supply for the indoor unit fan turns ON while in operation. Supposed Causes
Defective power supply for the indoor unit fan motor Clogged drain piping
Actuation of the indoor unit safety device Defective contact in the fan wiring circuit 
Boris_Duh
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