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Model reference

LG LMNH482BEG0

Air Conditioner

4 documents30 error codes12 service modes

Available documentation

Service Manual

  • Multi Type Air Conditioner SERVICE MANUAL153 pg
    Covers this model
  • LG Multi Type Air Conditioner SERVICE MANUAL153 pg
    Covers this model
  • Universal Air Conditioner SVC MANUAL (Exploded View)145 pg
    Covers this model
  • Multi Type Air Conditioner SERVICE MANUAL153 pg
    Covers this model
MyPros+ Max

Diagnose your LG LMNH482BEG0.

  • Step-by-step diagnostics from the service manual
  • Test values, resistance specs, and wiring references
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Error codes (30)

CodeMeaning
01Indoor air (room) thermistor sensor open or short circuit.02Indoor inlet pipe thermistor sensor open or short circuit.03Wired remote controller communication error (open/short/wrong connection).04Drain pump or float switch error (float switch open when it should be short).05Communication error between indoor and outdoor unit (indoor side indication).06Indoor outlet pipe thermistor sensor open or short circuit.07Different mode operation21DC Peak / IPM Fault22CT2 (Max Current)23DC Link Low Voltage24Low/High pressure switch open.25AC Low/High voltage26DC compressor position detect error.27PSC Fault28DC Link High Voltage32Discharge pipe temperature high (inverter compressor).33Discharge pipe temperature high (compressor discharge temperature exceeds…40CT sensor circuit malfunction (open/short).41Inverter discharge pipe thermistor error (open/short).44Outdoor air thermistor sensor open or short circuit.45Condenser pipe thermistor sensor open or short circuit.46Suction pipe sensor error (open/short).47Discharge pipe thermistor sensor (constant compressor) open or short circuit.51Capacity error53Communication error between indoor and outdoor unit (outdoor side indication).54Phase error on outdoor unit 3-phase power supply.60EEPROM check sum error61Condenser pipe sensor temperature high (65°C or above).62Heat sink sensor temperature high (85°C or above).65Heat sink thermistor error (open/short).

Service modes (12)

  • address_monitoringPress Chaos Swing (button 6) and Reset (button 13) keys simultaneously to enter Address Monitoring…
  • address_monitoring_wirelessPress Chaos Swing (6) and Reset (13) keys simultaneously to enter Address Monitoring Mode.
  • address_monitoring_wireless_remoconPress Chaos Swing (key 6) and Reset (key 13) simultaneously
  • address_setting_wired_remoconPress Program (13) and Set/Clear (16) keys simultaneously for more than 3 seconds to enter Address…
  • address_setting_wired_remote1
  • address_setting_wireless_remoconPress Jet Cool (5) and Reset (13) keys simultaneously for more than 3 seconds to enter Address…
  • address_setting_wireless_remote1
  • esp_setting1) Press On/Off button to start unit
  • forced_operationMove the slide switch on the indoor unit main body to the forced operation position. If power is…
  • forced_operation_cassettePress button for 2 seconds on the cassette type unit to start forced operation.
  • test_run_cassettePress the button for 5 seconds on the cassette type unit to start test run.
  • test_run_room_typePress timer cancel button five times continuously on the room type unit to start test run.

Full entry steps, exit procedures, and test sequences are available in Max.

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