Troubleshooting
4-66
Samsung Electronics
4-3-41 Fan starting error
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 10Ω?
Replace Fan Motor
No
Yes
Is the resistance
between the body of FAN Motor
and chassis MΩ?
Replace Fan Motor
No
Yes
Does the FAN Motor
connection wire properly
connect?
Check the connection wire
No
1. Cause of problem
Outdoor unit
display
(FAN PCB(FAN1))
(FAN PCB(FAN2))
Judgment
Method
∙ Startup, and then if the speed increase is not normally.
∙ Detected by H/W or S/W
Cause of
problem
∙ FAN motor connection error.
∙ Defective FAN motor.
∙ Defective PCB.