Model reference
LG LMNH242BHA0
Air Conditioner
6 documents36 error codes13 service modes
Available documentation
Service Manual
- LG Multi Type Air Conditioner SERVICE MANUAL65 pg
- Multi Type Air Conditioner SERVICE MANUAL65 pg
- Multi Type Air Conditioner SERVICE MANUAL153 pg
- LG Multi Type Air Conditioner SERVICE MANUAL153 pg
- Universal Air Conditioner SVC MANUAL (Exploded View)145 pg
- Multi Type Air Conditioner SERVICE MANUAL153 pg
MyPros+ Max
Diagnose your LG LMNH242BHA0.
- Step-by-step diagnostics from the service manual
- Test values, resistance specs, and wiring references
- Verified part numbers when replacement is needed
Start diagnosing
$29/month · Cancel anytime · Or $9.95 3-day pass
Error codes (36)
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 operation1Indoor air temperature thermistor open/short circuit.2Indoor inlet pipe temperature thermistor open/short circuit.21DC 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.5Poor communication between indoor and outdoor units.51Capacity error53Communication error between indoor and outdoor unit (outdoor side indication).54Phase error on outdoor unit 3-phase power supply.6Indoor outlet pipe temperature thermistor open/short circuit.Service modes (13)
- 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_operationOpen the front panel upward
- 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.
Related LG air conditioner models
78,000+ service manuals · 160,000+ error codes · 55+ brands
Get Started$29/month · Cancel anytime · Or $9.95 3-day pass