Samsung AC052MN4DKH Service Manual page 75

Troubleshooting
1. Did compressor wires assembled
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?
Replace the PCB.
E46 Error-related, EMI / outdoor unit Main / Indoor unit Main PCB do not replace!
This error is related to the 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.
4-40
Continue
Yes
Yes
(cont.)
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.
W
V
U
[RC HXH series]
PCB connecting connector
[RC060
Power ON.
End the service.
Power ON.
End the service.
Power ON.
End the service.
W
V
U
[RC090 /RC100
RC110 / RC130
RC145 /RC160
V
W
W
V
U
U
PCB connecting connector
/RC072 series]
Samsung Electronics
/
/
series]