Model reference
LG LMNH242D3*0
Air Conditioner
2 documents29 error codes10 service modes
Available documentation
Service Manual
- Multi Type Air Conditioner SERVICE MANUAL153 pg
- LG Multi Type Air Conditioner SERVICE MANUAL153 pg
MyPros+ Max
Diagnose your LG LMNH242D3*0.
- Step-by-step diagnostics from the service manual
- Test values, resistance specs, and wiring references
- Verified part numbers when replacement is needed
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Error codes (29)
CodeMeaning
01Indoor room thermistor (air sensor) error02Indoor inlet pipe sensor error03Communication error between indoor unit and wired remote controller.04Drain pump / float switch error05Communication error between indoor and outdoor unit.06Indoor outlet pipe sensor error07Different 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 (constant compressor)40CT sensor circuit malfunction (open/short).41Inverter discharge pipe thermistor error (open/short).44Outdoor air thermistor error (open/short).45Condenser pipe thermistor error (open/short).46Suction pipe sensor error (open/short).47Constant compressor discharge pipe thermistor error (open/short).51Over capacity53Communication signal error between indoor and outdoor unit.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 (10)
- address_monitoringPress Chaos Swing (button 6) and Reset (button 13) keys simultaneously to enter Address Monitoring…
- address_monitoring_wireless_remoconPress Chaos Swing (key 6) and Reset (key 13) simultaneously
- address_setting_wired_remoconPress Program (key 13) and Set/Clear (key 16) simultaneously for more than 3 seconds. 'Address…
- address_setting_wired_remote1
- address_setting_wireless_remoconPress Jet Cool (key 5) and Reset (key 13) simultaneously for more than 3 seconds. 'Address Setting…
- address_setting_wireless_remote1
- esp_setting1) Press On/Off button to start unit
- forced_operationOn the indoor unit, switch the slide switch from the remote control position to the forced…
- test_run_cassettePress the forced operation button for 2 seconds to start forced operation (Cassette Type)
- test_run_room_typePress the timer cancel button five times continuously on the remote controller (Room type).
Full entry steps, exit procedures, and test sequences are available in Max.
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