Samsung AM080FX A Series - Fan Motor Overcurrent Error

Samsung Electronics 214
Troubleshooting
4-3-50 Fan Motor Overcurrent error
Outdoor unit display
(FAN PBA(FAN1))
(FAN PBA(FAN2))
Judgment Method
∙ Occurs when overcurrent flows in the IPM.
∙ Detected by H/W or S/W
Cause of problem
- Defective Motor
- Fan motor U/V/W connection error.
- Fan motor hall IC connection error.
- Wire connection is crossed #1 & #2.
- Defective Fan PBA
1.
Cause of problem
Replace Fan PBA
Yes
Replace Outdoor Fan Motor
No
Yes
Is the resistance value
between different phases of Fan Motor
(U  V, V  W, W  U) less than 10Ω?
Replace Outdoor Fan Motor
Reconnect wires (Housing – Connector)
No
No
Yes
Yes
Is the resistance between the body of
Fan Motor and chassis MΩ?
Is the Fan Motor wire properly
connected to FAN PBA?
Power Off
Fan PBA wire connection
FAN Motor Connector
Hall-sensor Connector
[FAN PBA]
Hall-sensor Connector
4-3 Appropriate Measures for Different Symptom (cont.)