Fan Starting Error - Samsung AM072/096/120/144FXVAFH Service Manual

4-4-41 Fan starting error

Outdoor unit display
∙ Startup, and then if the speed increase is not normally.
Judgment Method
∙ Detected by H/W or S/W
∙ Compressor connection error
Cause of problem ∙ Defective FAN Motor
∙ Defective PCB
1. How to check
Power Off and then Restart
Is the resistance
value between different phases of
an Motor (U V,V W,W U)
less than 10Ω?
Is the resistance between the
body of Fan Motor and chassis MΩ?
Does the Compressor connection
wire properly connect?
Replace Fan PCB
Samsung Electronics
(FAN PCB(FAN1))
(FAN PCB(FAN2))
Yes
Yes
Yes
No
Replace Fan Motor
No
Replace Fan Motor
No
Check the connection wire
Troubleshooting
4-89