Product specifications

4-21 Samsung Electronics

4-5-11 O.C.(Over Cirrent) 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

Is the installation of outdoor unit good?

Is the installation of indoor unit good?

Are the service valves full opened?

Does the compressor wire connected to

the compressor normally?

Is insuration resistance between each compressor

terminal and body normal?

Does the compressor rotate normally?

Did AC power voltage interruption happen during

the compressor in operation?

Reinstall and remove the obstruction

Open valve screw to the end

Correct the compressor wire connection

Exchange the compressor

Check AC power source

Exchange INVERTER PCB

Yes