Samsung AE040RXEDEG Service Manual

Also see for EHS AE050RXYDEG/EU: Manual

Troubleshooting88Samsung ElectronicsError mode Contents MeasureProduct operation inerror condition Error typeOutdoor unit/Compressor/Indoor unitOutdoor fan 1 errorCheck input power connection status .Check the connection status between the motor andoutdoor unit PCBCheck indoor/outdoor fuse.Operation Off Self diagnosticerror[Inverter] Compressor startuperrorCheck the compressor connection status .Check the resistance between difference phases of thecompressor.Operation OffOutdoor unitprotectioncontrol error[Inverter] Total current error/PFC over current errorCheck the input power.Check the coolant charging status .Check the normal operation of outdoor fan.Operation OffOutdoor unitprotectioncontrol errorOLP over heat and comp stop Check OLP sensor. Operation Off Self diagnosticerror[Inverter] IPM over current errorCheck coolant charging.Check the compressor connection status and normaloperation .Check the obstacles around the indoor and outdoorunits.Check whether the outdoor unit service valve is open.Check whether the indoor/outdoor installation pipe/wiring are correct.Operation OffOutdoor unitprotectioncontrol errorCompressor V limit errorCheck the compressor connection status .Check the resistance between difference phases of thecompressor.Operation OffOutdoor unitprotectioncontrol errorDC LINK over/low voltage error Check input power .Check AC power connection. Restart in 3 minutesOutdoor unitprotectioncontrol error[Inverter] Compressor rotationerrorCheck the compressor connection status .Check the resistance between difference phases of thecompressor.Operation OffOutdoor unitprotectioncontrol error[Inverter] Current sensor error Check EEPROM DATA.Check the normal operation of PCB. Operation OffOutdoor unitprotectioncontrol error[Inverter] DC LINK voltagesensor errorCheck the input power connection.Check the status of RY21 and R200 in the INVERTERPCB.Operation OffOutdoor unitprotectioncontrol errorEEPROM read/write error Check EEPROM of outdoor unit. Operation Off Outdoor Uniterror[Inverter] OTP error Check EEPROM DATA.Check the normal operation of PCB. Operation OffOutdoor unitprotectioncontrol errorIPM(IGBT Module) or PFCMtemperature sensor Error Exchange INVERTER PBA. Operation Off Outdoor UniterrorOutdoor fan 2 errorCheck the input power connection status.Check the connection status of the motor and theoutdoor unit PCB.Check the indoor/outdoor unit fuse.Operation Off Self diagnosticerrorPFC Overload Error Check reactor located in control plate.If reactor is normal, exchange INVERTER PBA. Operation Off Outdoor UniterrorInput current sensor error Check Outdoor Inverter PBA. Operation Off Outdoor UniterrorIPM is overheated Check INVERTER PBA's temperature. Power off and cooldown INVERTER PBA, and then restart the outdoor unit. Operation Off Outdoor UniterrorWired remote controller (cont.)