Hall Ic Connection/Two Motor Parameter Difference Error - Samsung AM072BXV Series Service Manual

Troubleshooting
4-3 Appropriate Measures for Different Symptom (cont.)
4-3-52 /
Outdoor unit display
• Fan rotation defective or vibration and noise of the defective operation.
Judgment Method • Hall IC there is no signal input.
• Detected by SW while starting.
• Hall IC wire disconnection.
• Defective circuit parts and defective manufacturing.
Cause of problem
• Fan Motor defective.
• Motor parameters are completely different
1. Cause of problem
Power Off / Power Restart
Dual Fan Controller?
Yes
If there's two motor, the
combination is nomal?
No
Replace it normal combination
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
Samsung Electronics

Hall IC connection/Two motor parameter difference error

(FAN PBA(FAN1))
(FAN PBA(FAN2))
No
of HALL IC did confirmation?
(Verify that the wire folded, or the connection
HALL IC on the PBA is correctly
Yes
When the error is repeated, replace the Fan Motor.
Did the error occurs?
Yes
Connection wire
is detached.)
Yes
connected ?
Yes
Replace Fan PBA
Restart
FAN Motor Connector
No
End of Service
No
Check the connecting wire and
restart.
FAN Motor
No
Check the connecting wire and
restart.
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