Samsung Air Conditioning Error Codes

Samsung E464 IPM Over Current overload
Samsung E461 compressornot start
Samsung E473 compressor blocking
Samsung E466 DC Link cardvoltage error
Samsung E221 outdoor temp. sensor
Samsung E416 Discharge Temp. Overheat
Samsung E251 Dischargetemp. sensor
Samsung E468 electric current sensor
Samsung E465 compressor error
Samsung E237 winding error of the temp. sensor
Samsung E202 connection time (1 minute) expired
Samsung E458 Fan Error(Outdoor)
Samsung E471 OTP error
Samsung E467 Compressor rotation/Wire Missing
Samsung E440 operation condition secession Low
Samsung E441 operation condition secession High
Samsung E469 DC error of the voltage sensor
Samsung E462 Trip error / PFC Over current
Samsung E554 leak of refrigerant
Samsung E472 zero crossing of the AC voltage
Samsung E556 Capacity Miss-match
Samsung E121 internal air temp. sensor is closed / cut off
Samsung E122 evaporator temp. sensorclosed / cut off
Samsung E154 Indoor unit fan error
Samsung E101 connection time (1 minute) exceeded
Samsung E186 MPI error
Samsung E101 Indoor TOOutdoor Wiring issuse
Samsung E102 Indoor TOOutdoor Wiring issuse
Samsung E121 ROOM Temp. sensor error
Samsung E122 INDOOR MID, INDOOR IN PIPE-Temp. sensor 
Samsung E154 Fan Error (Indoor)
Samsung E162 EEPROM(Indoor motor)
Samsung E231 Cond Temp. Sensor
Samsung E422 EEV or Valve Close error-Self diagnosis
Samsung E470 EEPROM Data Error (no data)
Samsung E471 EEPROM Data Error (Main Micom Inv Micom) 
Samsung E474 Heatsink Sensor Error
Samsung E483 Over Voltage Protection
Samsung E484 PFC Over Load
Samsung E485 Input Current Sensor
Samsung E488 AC Input Voltage Sensor
Samsung E500 Heatsink Over Temperature Error
Samsung E554 Gas Leak Error
Samsung E163 Option Error
Samsung E203 Time out Comm. (Inv Micom Main Micom)
 Samsung E440 over(Heating) Error
Samsung E441 Prohibit Operation Condition Error (Cooling