Model reference
LG LRNN282TDA0
Air Conditioner
1 document81 error codes4 service modes
Available documentation
Service Manual
- Air Conditioner Service Manual413 pg
MyPros+ Max
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Error codes (81)
CodeMeaning
01Indoor unit air temperature sensor open or short circuit.02Indoor unit inlet pipe temperature sensor open or short circuit.03Communication error between wired remote controller and indoor unit04Drain pump malfunction05Communication error between outdoor unit and indoor unit06Indoor unit outlet pipe temperature sensor open or short circuit.07Indoor unit is operated in a different operation mode from the already-operated…09Indoor unit EEPROM error100Discharge temperature of Sub1 outdoor unit No.1 constant speed compressor too…101Discharge temperature of Sub1 outdoor unit No.2 constant speed compressor too…102Discharge temperature of Sub2 outdoor unit No.1 constant speed compressor too…103Discharge temperature of Sub2 outdoor unit No.2 constant speed compressor too…104Communication error between outdoor units105Communication error between main PCB and fan driving PCB106Over-current of main outdoor unit fan motor (IPM fault).107Low voltage of main outdoor unit fan motor.108Communication error of main outdoor unit fan motor109High pressure switch of Sub1 outdoor unit tripped.110Reverse connection of the R, S, T power line of Sub1 outdoor unit.111Communication error between outdoor units113Main outdoor unit liquid pipe temperature sensor open or short.114Main outdoor unit excessive cooling inlet temperature sensor open or short.115Main outdoor unit excessive cooling outlet temperature sensor open or short.116Sub1 outdoor unit high pressure sensor open or short.117Sub1 outdoor unit low pressure sensor open or short.118Sub1 outdoor unit air temperature sensor open or short.120Sub1 outdoor unit suction temperature sensor open or short.121Sub1 outdoor unit constant speed compressor1 discharge temperature sensor open…122Sub1 outdoor unit constant speed compressor2 discharge temperature sensor open…123Sub1 outdoor unit heat exchanger sensor (front side) open or short.View all 81 error codes
124Sub1 outdoor unit heat exchanger sensor (rear side) open or short.125Sub1 outdoor unit liquid pipe temperature sensor open or short.126Sub1 outdoor unit excessive cooling inlet temperature sensor open or short.127Sub1 outdoor unit excessive cooling outlet temperature sensor open or short.128Sub2 outdoor unit high pressure sensor open or short (3 units).129Sub2 outdoor unit low pressure sensor open or short (3 units).130Sub2 outdoor unit air temperature sensor open or short (3 units).132Sub2 outdoor unit suction temperature sensor open or short (3 units).133Sub2 outdoor unit constant speed compressor1 discharge temperature sensor open…134Sub2 outdoor unit constant speed compressor2 discharge temperature sensor open…135Sub2 outdoor unit heat exchanger temperature sensor (front side) open or short…136Sub2 outdoor unit heat exchanger temperature sensor (rear side) open or short…137Sub2 outdoor unit liquid pipe temperature sensor open or short (3 units).138Sub2 outdoor unit excessive cooling inlet temperature sensor open or short (3…139Sub2 outdoor unit excessive cooling outlet temperature sensor open or short (3…140Sub2 outdoor unit high pressure switch tripped (3 units).141Reverse connection of R, S, T power line of Sub2 outdoor unit.142Communication error between outdoor units143Compressor stops by excessive rise of Sub1 outdoor unit high pressure.144Compressor stops by excessive drop of Sub1 outdoor unit low pressure.145Compressor stops by excessive rise of Sub2 outdoor unit high pressure (3 units).146Compressor stops by excessive drop of Sub2 outdoor unit low pressure (3 units).147Short voltage/excess voltage of Sub1 outdoor unit148Voltage sensor of Sub1 outdoor unit open or short.149Short voltage/excess voltage of Sub2 outdoor unit (3 units).150Voltage sensor of Sub2 outdoor unit open or short (3 units).151Failure of operation mode conversion21DC peak22Maximum over current (MAX CT) or minimum current of inverter compressor.23DC link voltage not charged after starting relay turn on for inverter…24High pressure switch of main outdoor unit tripped25Input voltage is more than 487V or less than 270V (low/high voltage error).32Discharge temperature of main outdoor unit inverter compressor too high33Discharge temperature of main outdoor unit constant speed compressor too high34Compressor stops by excessive rise of main outdoor unit high pressure.35Compressor stops by excessive drop of main outdoor unit low pressure.40Current detect (CT) sensor of main outdoor unit inverter compressor open or…41Discharge temperature sensor of main outdoor unit inverter compressor open or…42Outdoor low pressure sensor of main outdoor unit open or short.43Outdoor high pressure sensor of main outdoor unit open or short.44Outdoor air sensor of main outdoor unit open or short.45Heat exchanger sensor of main outdoor unit (front side) open or short.46Suction temperature sensor of main outdoor unit open or short.47Discharge temperature sensor of the constant speed compressor of main outdoor…48Heat exchanger sensor of main outdoor unit (rear side) open or short.51Excessive connection of indoor units compared to capacity of outdoor unit.52Communication error between inverter PCB and main PCB53Communication error between indoor unit and main outdoor unit PCB543-phase wrong wiring of main outdoor unit (reverse phase or omission of phase).62Excessive temperature of inverter heatsink radiation panel.65Fan temperature sensor open or short.
Service modes (4)
- auto_addressing["Ensure all indoor and outdoor units are powered on.","Press the red button on the Main PCB for 6…
- forced_operation["Press the Forced Operation Button on the indoor unit.","Unit determines operation mode based on…
- initial_setup["Step 1: Communication check
- test_operation_wall_mounted["Open the front panel upward.","Press and hold the forced operation (power) button for…
Full entry steps, exit procedures, and test sequences are available in Max.
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