Samsung AC018KN4DCH Service Manual page 90

Troubleshooting
IPM over(Over Current) error (Error Code : E464)
Continue
1. Did compressor wires assembled in the
appropriate color? (U:Red, V:Blue, W:Yellow)
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.
Yes
Check
Yes
(cont.)
No
1. Replace the compressor wire.
Check normal startup.
2. Replace the compressor wire.
Check normal startup.
3. Replace the compressor wire.
Check normal startup.
W
[RC
PCB connecting connector
[RC060
4-50
Power ON.
End the service.
Power ON.
End the service.
Power ON.
End the service.
V
U W
V
U
HXH series] [RC090 /RC100
RC110 / RC130
RC145 /RC160
V
W
W
V
U
U
PCB connecting connector
/RC072 series]
/
/
series]