Ipm Ipm (Over Current) Error (Error Code : E464) - Samsung AC071MN4PKH Service Manual

4-4-18. IPM IPM (Over Current) error (Error Code : E464)

1. Test items
11) Check the power connection. / Check the restart after power reset.
2) Install outdoor unit and check environment.
Check for wire disconnection related to outdoor unit Inverter PCB and check the installation environment.
After having installed several units, please check that communication wires are not interchanged with piping.
3) Check the indoor unit installation environment.
4) Check the opening of service valve.
5) Check the status of compressor assembly and wiring.
6) Check the defective for compressor wire single parts.
2. Check procedure
Power on 30 seconds after power off.
Is the outdoor unit installed properly?
Is the indoor unit installed properly?
Is indoor and outdoor unit wiring/piping
installed properly?
Continue
Yes
Yes
Yes
Outdoor unit installation and environment check.
Check for normal operation at restart.
End the service.
No
1. Check for wire disconnection related to outdoor
unit Inverter PCB.
2. Remove obstacle on the inlet of outdoor unit
and secure the space.
Check installation environment of indoor unit.
No
for normal operation at restart.
1. Remove obstacle on the inlet and secure the space.
2. Remove obstacle on the outlet and secure the space.
No
Install again by following the standard specifications.
Piping
Wiring
4-47
Troubleshooting
check
End the service.
Bad installation