Troubleshooting84 Samsung Electronics4-5-6 Current trip error (E462, E463)1. Check items1) Is the voltage of power suitable?2) Is refrigerant charged?2. Check procedureIs the outdoor unit installed wellaccording to installation manual?YesNo Reinstall after remove the obstacleYesNo3) Does the fan of outdoor unit work normally?Does the compressor work normal?YesNoAre the service valves fully opened?YesNo Open the service valvesPrimary current trip error(E462), Over current trip / PFC over current error(E463)Exchange the compressor4) Is there any obstacle around indoor and outdoor unit?Is the indoor unit installed wellaccording to installation manual? Reinstall after remove the obstacleExchange INVERTER PCB4-6-6