Samsung Electronics
138
Troubleshooting
4-3-49
/
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
4-3 Appropriate Measures for Different Symptom (cont.)
Yes
Power Off
Replace Fan PBA
Replace Fan PBA
Check the connection wire
Replace a normal combination
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 Fan motor
connection wire properly connect?
If it is Dual Fan Controller?
If the motor is two,
the combination is normal?
Replace Fan PBA
Restart
Fan motoe replacement
when error iteration
Yes
Yes
Yes
Yes
Normal ccmbination
DB31-00614E, DB31-00614F
DB31-00614G, DB31-00614H
DB31-00651A, DB31-00651B
DB31-00652A, DB31-00651B
DB31-00675A, DB31-00675B
DB31-00675E, DB31-00675F
No
No
No
No
