Fan Starting Error - Samsung AM072FXVAFH series 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
value between different phases of
an Motor (U V,V W,W U)
Is the resistance between the
body of Fan Motor and chassis MΩ?
Does the Compressor connection
wire properly connect?
Samsung Electronics
(FAN PCB(FAN1))
(FAN PCB(FAN2))
Is the resistance
less than 10Ω?
Yes
Yes
Yes
Replace Fan PCB
No
Replace Fan Motor
No
Replace Fan Motor
No
Check the connection wire
Troubleshooting
4-89