Samsung AC052MN4DKH Service Manual

Also see for AC052MN4DKH: Installation manual

TroubleshootingSamsung Electronics 4-15Wired remote controller (cont.)&SSPSNPEF Contents .FBTVSFProduct operation inerror condition&SSPSUZQFOutdoor unit/Compressor/IndoorunitOLP Overheat and Comp. StopReconfirm the opening of the service valve.Check for leaks from the connection part of the pipe andproduct or from the pipe joint.Change the outdoor unit location and direction.Refill the coolant after checking the leaking part.Reinstall the outdoor unit set.Operation OffOutdoor unitprotectioncontrol error[Inverter] IPM over currenterrorCheck coolant chargingCheck the compressor connection status and normaloperationCheck the obstacles around the indoor and outdoor unitsCheck whether the outdoor unit service valve is openCheck whether the indoor/outdoor installation pipe/wiring are correctOperation OffOutdoor unitprotectioncontrol errorCompressor V limit errorCheck the compressor connection statusCheck the resistance between difference phases of thecompressorOperation OffOutdoor unitprotectioncontrol errorDC LINK over/low voltage error Check input powerCheck AC power connection Restart in 3 minutesOutdoor unitprotectioncontrol error[Inverter] Compressor rotationerrorCheck the compressor connection statusCheck the resistance between difference phases of thecompressorOperation OffOutdoor unitprotectioncontrol error[Inverter] Current sensor error Check EEPROM DATACheck the normal operation of PCB Operation OffOutdoor unitprotectioncontrol error[Inverter] DC LINK voltagesensor errorCheck the input power connectionCheck the status of RY21 and R200 in the INVERTER PCB Operation OffOutdoor unitprotectioncontrol errorEEPROM Read/Write error - Operation OffOutdoor unitprotectioncontrol error[Inverter] OTP error Check EEPROM DATACheck the normal operation of PCB Operation OffOutdoor unitprotectioncontrol errorAC ZERO CROSSING SIGNALOUT error Check the input power status Operation OffOutdoor unitprotectioncontrol errorCompressor LOCK errorCheck the compressor connection statusCheck the resistance between difference phases of thecompressorOperation OffOutdoor unitprotectioncontrol errorOutdoor fan 2 errorCheck the input power connection statusCheck the connection status of the motor and theoutdoor unit PCBCheck the indoor/outdoor unit fuseOperation Off Self diagnosticerrorIPM Overheat Error forOutdoor Unit Inverter Comp.Change the location of the outdoor unit if thetemperature is abnormally high when the heatproofplate is checked.Reconnect the screws.Replace the outdoor unit fan.Replace the PBA of the outdoor unit.Operation OffOutdoor unitprotectioncontrol errorGas leak errorCheck the coolant charging statusCheck the indoor EVA sensorCheck if the outdoor unit service value is openCheck that the indoor/outdoor installation pipe/wiringare correctOperation Off Self diagnosticerrorCapacities not matched Check the option code of the indoor unit Operation OffOutdoor unitprotectioncontrol error