Troubleshooting
4-122 Samsung Electronics
4-4-79 Fan Motor Overcurrent error
Outdoor unit display
(FAN PCB(FAN1))
(FAN PCB(FAN2))
Judgment Method
Occurs when overcurrent flows in the IPM.
Detected by H/W or S/W
Cause of problem
Installation err or
Defective Comp
Defective PCB
Connector error
Defective Motor
1.
Cause of problem
FAN Replace PCB.
Reinstall after removing obstacle
No
Yes
Yes
Is the outdoor unit installed properly?
Outdoor Fan Motor
No
Yes
Is the resistance value
between different phases of Fan Motor
(UࣖV, VࣖW, WࣖU) less than 10?
Outdoor Fan Motor
Check the connection wire
(Check the status of the connection UVW)
No
No
Yes
Yes
Is the resistance between the body of
Fan Motor and chassis M?
Does the Fan Motor connection wire
properly connect to the compressor?
Power Off
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