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.
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
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
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?
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