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LG Air-Conditioner Error Codes


Indoor unit:

 

01 - short-circuited air temperature sensor or open circuit;

 

02 - the evaporator temperature sensor is short-circuited or an open in the circuit;

 

03 - bad connection between the control panel and the wired indoor unit;

 

04 - error of float level sensor of condensate or pump (drain pump);

 

05 - an error of connection of external with the internal block;

 

06 - short-circuit of outdoor unit temperature sensor or open circuit;

 

07 - inclusion of internal blocks of the multisystem for different operating modes;

 

HL - error similar to 04, the float sensor is open;

 

CL - child lock is set, press Timer & Min Buttons for 3 seconds;

 

Po - jet cool mode is set, for exiting press jet cool button


External unit:

 

21 - the compressor is rebooted by current;

 

22 - the compressor current exceeds 14 A;

 

23 - the DC current has a voltage lower than 140 V (voltage after the conversion module, not power supply);

 

24 - low / high pressure error, pressure sensors open;

 

25 - supply voltage is lower / higher than the normal value;

 

26 - DC Compressor Position;

 

27 - PSC error occurred (inductor, reactor);

 

28 - DC Link High Volts;

 

32 - The discharge pipe has a high temperature (INV);

 

33 - The discharge pipe has a high temperature (Cons.);

 

40 - a short circuit occurred CT;

 

41 - temperature sensor D-Pipe closed / torn (INV);

 

44 - the outdoor temperature sensor is closed / cut off;

 

45 - the condenser temperature sensor is closed / cut off;

 

46 - the sensor on the suction tube has closed / broken;

 

47 - the D-pipe sensor is closed / cut off;

 

48 - absence / break of D-pipe sensor and air temperature sensor;

 

51 - overload in capacity of combined type;

 

52 - there was a connection error (main micom-sub micom);

 

53 - connection error occurred (outdoor-indoor units);

 

54 - to change the phase, the sequence of phases is incorrect, for systems with three-phase power;

 

60 - error EEPROM (internal non-volatile memory);

 

61 - Condenser tube (condenser) has a high temperature;

 

62 - the radiator has a high temperature (most likely, we are talking about the cooling cooler of the inverter power module);

 

63 - the condenser has a low temperature;

 

65 - the temperature sensor was shorted / broken;

 

67 - blocking of the external BLDC (brushless DC motor) of the fan;

 

105 - the fan control and the main control board do not communicate with each other.

 

The error codes for LG Art Cool air conditioners and all other air conditioners LG wall type:

 

CH1 or C1 - the internal temperature sensor has been short-circuited or an open circuit has occurred;

 

CH2 or C2 - the evaporator temperature sensor is short-circuited or an open circuit has occurred;

 

CH4 or C4 - a short-circuit of the condenser temperature sensor or an open in the circuit occurred;

 

CH5 or C5 - the indoor and outdoor units are connected;

 

CH6 or C6 - in the circuit of the inverter module the current is exceeded;

 

CH7 or C7 - the compressor current is exceeded;

 

CH8 or C8 - no fan rotation of the indoor unit;

 

CH9 or C9 - no external fan rotation;

 

CH-10 or C10 - thermistor temperature control of the compressor Split system defective (a short circuit or breakage occurred);

 

CA - discharge temperature exceeds 130 degrees Celsius;

 

CC - an EEPROM error occurred (internal non-volatile memory);

 

CD - an error occurred in the inverter module;

 

CE

 

Po - no error, finding the system in power saving mode;

 

Lo - no error, finding the system in test mode.