Model reference
LG LMNN185BHA0
Air Conditioner
1 document30 error codes3 service modes
Available documentation
Service Manual
- Free Joint Multi Air Conditioner SVC MANUAL(Exploded View)70 pg
MyPros+ Max
Diagnose your LG LMNN185BHA0.
- 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 (30)
CodeMeaning
01Indoor room thermistor error02Indoor in-piping sensor error03Remote controller error04Drain pump error05Communication error between indoor and outdoor units06Indoor out-piping sensor error07Different mode operation21DC Peak (IPM Fault)22CT 2 (Max CT)23DC Link Low Voltage24Low Pressure / Heater Sink error25Low voltage / Over voltage26DC Compressor Position Error27PSC Fault Error28DC Link High Voltage32Discharge pipe high temperature (inverter)33Discharge pipe high temperature (normal)40CT Sensor (Open/Short)41Inverter discharge pipe thermistor error (Open/Short)44Outdoor air thermistor error (Open/Short)45Condenser pipe thermistor error (Open/Short)46Suction pipe thermistor error (Open/Short)47Constant discharge pipe thermistor error (Open/Short)51Capacity over53Signal error (Indoor to Outdoor communication)60EEPROM Check Sum Error61Condenser pipe high temperature62Heatsink high temperature63Condenser pipe low temperature65Heatsink thermistor error (Open/Short)Service modes (3)
- ESP (External Static Pressure) Setting1) Push the On/Off button to start unit
- Forced OperationUse the forced operation selection slide switch on the main unit
- Test Run (Ceiling Cassette Type)Press the room temperature checking button and down timer button simultaneously for 3 seconds.
Full entry steps, exit procedures, and test sequences are available in Max.
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