Samsung DVM S ECO BIG Series Service Manual page 78

Troubleshooting
■ Hall IC connection error of Fan2 (E387) / Hall IC connection error of Fan1. (E487)
Outdoor unit Display
Judgement Method
Cause of problem
Power Off / Power Restart
Did the error occurs?
Connection wire of
HALL IC did confirmation?
(Verify that the wire folded, or the connection
is detached.)
HALL IC on the PCB is
connected correctly?
Replace Fan PCB.
When the error is repeated, replace the Fan Motor.
4-36
• IFan rotation defective or vibration and noise of the defective operation.
• IHall IC there is no signal input.
• IConnection status error.
• IHall IC wire disconnection.
• IDefective circuit parts and defective manufacturing.
• IFan Motor defective.
Yes
Yes
Yes
Restart.
E-387 / E-487
No
No
Check the connecting wire and restart it.
No
Check the connecting wire and restart it.
End of Service
Samsung Electronics