Samsung AC140KNPDEH - E464: O.C. (over Current) Error

Troubleshooting
4-20 Samsung Electronics
4-3-13 E464 : O.C. (Over Current) error
1. Checklist :
1) Is the refrigerant charged properly?
2) Does the compressor rotate normally?(Reverse rotation, Locking etc.)
3) Is connection of compressor wire normal?
4) Is compressor motor normal?(Insulation, Coil resistance etc.)
5) Does a temporary cycle overload condition happened?
2. Troubleshooting procedure
Yes
Yes
No
No
No
No
No
No
Yes
Yes
Yes
Does the compressor wire connected to the
compressor normally?
Yes
Yes
Replace the compressor
Reinstall and remove the obstructionIs the installation of outdoor unit good?
Reinstall and remove the obstruction
Is the installation of indoor unit good?
Open valve screw to the end.
Are the service valves full opened?
Correct the compressor wire connection
Is insuration resistance between each
compressor terminal and body normal?
Replace INVERTER PCB
No
Does the compressor rotate normally?
Did AC power voltage interruption happen
during the compressor in operation?
Replace the compressor
Check AC power source