Samsung AM032MNQDCH/AA Service Manual page 321

4-4-79 Fan Motor Overcurrent error
Outdoor unit display
∙ Occurs when overcurrent flows in the IPM.
Judgment Method
∙ Detected by H/W or S/W
∙ Installation error
Cause of problem ∙ Defective Comp
∙ Defective PCB
1. Cause of problem
Power Off
Is the outdoor unit installed properly?
Is the resistance value
between different phases of Fan Motor
(U V, V W, W U) less than 10Ω?
Is the resistance between the body of
Fan Motor and chassis MΩ?
Does the Fan Motor connection wire
properly connect to the compressor?
FAN Replace PCB.
Samsung Electronics
(FAN PCB(FAN1))
(FAN PCB(FAN2))
Yes
Yes
Yes
Yes
Yes
∙ Connector error
∙ Defective Motor
No
Reinstall after removing obstacle
No
Outdoor Fan Motor
No
Outdoor Fan Motor
Check the connection wire
No
(Check the status of the connection UVW)
Troubleshooting
4-121