Samsung AC026RN1DKG, Service Manual

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Troubleshooting
4-42 Samsung Electronics
4-3-17 IPM over current error (Error Code : E464)
1. Test items
1) 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
Yes
Outdoor unit installation and environment
check. → Check for normal operation at
restart. → End the service.
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. → check for normal operation at restart.
→ End the service.
1. Remove obstacle on the inlet and secure
the space.
2. Remove obstacle on the outlet and secure
the space.
No
Is the outdoor unit installed properly?
No
Yes
Continue
Power on 30 seconds after power off.
Install again by following the standard
specifications.
No
Yes
Bad installation
Piping
Wiring
① ② ③
Is indoor and outdoor unit wiring/piping
installed properly?
Is the indoor unit installed properly?