Samsung AC052MN4DKH Service Manual page 71

Troubleshooting
1. Did compressor wires assem
bled in the appropriate color?
(U:Red, V:Blue, W:Yellow)
Check for disconnections of PCB and COMP.
2. Is the terminal in the compressor wire
housing firmly assembled?
3. Is there any fault of compressor wires
in disconnection or cutting?
After replacing the Inverter PCB of the outdoor unit,
check for normal startup.
E461, E467 Error-related, EMI / outdoor unit Main / Indoor unit Main PCB do not replace!
This error is related to the compressor and Inverter PCB. (Not related to the above PCB)
Ensure that the service valve is open!
When the service valve is closed, the defects may be caused by differential pressure when starting the compressor.
4-36
Continue
Yes
Yes
End the service.
1. Replace the compressor wire.
Check normal startup.
No
2. Replace the compressor wire.
Check normal startup.
3. Replace the compressor wire.
Check normal startup.
(cont.)
Power ON.
End the service.
Power ON.
End the service.
Power ON.
End the service.
Samsung Electronics