Troubleshooting
Samsung Electronics
4-77
IPM (Over Current) error (Error Code : E464) (Cont.)
Yes
1. Replace the compressor wire. → Power ON. → Check
normal startup. → End the service.
2. Replace the compressor wire. → Power ON. → Check
normal startup. → End the service.
3. Replace the compressor wire. → Power ON. → Check
normal startup. → End the service.
No
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.
Continue
Yes
※ 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.
W
V
U
W
V
U
W
V
U
W
V
U
PCB connecting connector
PCB connecting connector
