mypros+
Model reference

LG LRNN282BGA0

Air Conditioner

1 document81 error codes4 service modes

Available documentation

Service Manual

  • Air Conditioner Service Manual421 pg
    Covers this model
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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 operated in different operation mode from previously operated…09Indoor unit EEPROM serial number error100Discharge temperature of Sub1 outdoor unit No.1 constant speed compressor…101Discharge temperature of Sub1 outdoor unit No.2 constant speed compressor…102Discharge temperature of Sub2 outdoor unit No.1 constant speed compressor…103Discharge temperature of Sub2 outdoor unit No.2 constant speed compressor…104Communication error between outdoor units105Communication error between main PCB and fan driving control part.106Over-current at main outdoor unit fan motor (IPM Fault).107Low voltage of main outdoor unit fan motor.108Communication error from outdoor unit control part to fan driving control part.109High pressure switch of Sub1 outdoor unit activated due to high pressure…110Reverse connection or disconnection of 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 activated (3 units).141Reverse connection or disconnection of R,S,T power line of Sub2 outdoor unit.142Communication error between outdoor units143Compressor off by excessive increase of Sub1 outdoor unit high pressure.144Compressor off by excessive reduction of Sub1 outdoor unit low pressure.145Compressor off by excessive increase of Sub2 outdoor unit high pressure (3…146Compressor off by excessive reduction of Sub2 outdoor unit low pressure (3…147Input voltage of Sub1 outdoor unit is more than 487V or less than 270V.148Outdoor voltage sensor of Sub1 outdoor unit open or short.149Input voltage of Sub2 outdoor unit is more than 487V or less than 270V (3…150Outdoor voltage sensor of Sub2 outdoor unit open or short (3 units).151Failure of operation mode conversion21DC peak22Maximum over current (MAX CT) or minimum current in main outdoor unit inverter…23DC link voltage not charged after relay turn on for inverter compressor drive.24High pressure switch of main outdoor unit activated, suspending compressor.25Input voltage out of tolerance32Discharge temperature of main outdoor unit inverter compressor exceeded limit…33Discharge temperature of main outdoor unit constant speed compressor exceeded…34Compressor 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 main outdoor unit constant speed compressor…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 from inverter PCB to main PCB53Communication error from indoor unit to main PCB543-phase wrong wiring (reverse phase/omission of phase) of main outdoor unit.62Excessive temperature of inverter control part heatsink (radiation panel).65Fan temperature sensor open or short.

Service modes (4)

  • auto_addressing["Ensure all indoor and outdoor unit power is connected.","Press and hold the red button on Main…
  • forced_operation["Press the Forced Operation Button on the indoor unit.","Unit determines operating mode based on…
  • initial_setup["Step 1: Communication check
  • test_operation_wall_mounted["Open the front panel upward.","Press and hold the power button (forced operation switch) for…

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