Samsung AM080 XV Series - 4-3-50 Fan Motor Overcurrent error

Troubleshooting
4-76 Samsung Electronics
4-3-50 Fan Motor Overcurrent error
Outdoor unit display
(FAN PCB(FAN1))
(FAN PCB(FAN2))
Judgment Method
 Occurs when overcurr ent flows in the IPM.
 Detected by H/W or S/W
Cause of problem
 Defective FAN PCB
 Connector error
 Defective Motor
1.
Cause of problem
Replace Fan PCB
Yes
Replace Outdoor Fan Motor
No
Yes
Is the resistance value
between different phases of Fan Motor
(U ࣖ V, V ࣖ W, W ࣖ U) less than 10?
Replace Outdoor Fan Motor
Reconnect wires (Housing – Connector)
No
No
Yes
Yes
Is the resistance between the body of
Fan Motor and chassis M?
Is the Fan Motor wire properly
connected to FAN PCB?
Power Off
Fan PCB wire connection
FAN Motor Connector
Hall-sensor Connector
[FAN PCB]
Hall-sensor Connector