Service Manual - Quietside

4-5-11 O.C.(Over Current) errorMEMO1. 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 procedureIs the installation of outdoor unit good?NoReinstall and remove the obstructionYesIs the installation of indoor unit good?NoReinstall and remove the obstructionYesAre the service valves full opened?NoOpen valve screw to the end.YesDoes the compressor wire connected to thecompressor normally?NoCorrect the compressor wire connectionYesIs insuration resistance between eachcompressor terminal and body normal?NoExchange the compressorYesDoes the compressor rotate normally?NoExchange the compressorYesDid AC power voltage interruption happenduring the compressor in operation?YesCheck AC power sourceNoExchange INVERTER PCB4-28 Samsung ElectronicsCH£ª£ª£ªCAV_USA_30520_SM_N.indd 28 2009-2-18 17:33:50