Troubleshooting
4-104 Samsung Electronics
4-4-65 Fan starting error
Outdoor unit display
(FAN PCB(FAN1))
(FAN PCB(FAN2))
Judgment Method
Startup, and then if the speed incr ease is not normally.
Detected by H/W or S/W
Cause of problem
Compressor connection error
Defective Compressor
Defective PCB
Power Off and then Restart
Replace Fan PCB
Yes
Is the resistance
value between different phases of
an Motor (U׳V,V׳W,W׳U)
less than 10?
Replace Fan Motor
No
Yes
Is the resistance between the body of
Fan Motor and chassis M?
Replace Fan Motor
No
Yes
Does the Compressor connection
wire properly connect?
Check the connection wire
No
1.
Cause of problem
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