Model reference
LG H14SNE
Heat Pump
1 document40 error codes1 service mode
Available documentation
Service Manual
- AH Series SVC Manual86 pg
MyPros+ Max
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Error codes (40)
CodeMeaning
CH01Problem in Remote Room Air sensor (open/short/disconnected).CH02Problem in Refrigerant (Inlet side) sensor.CH03Bad communication between control panel and indoor unit.CH05Bad communication between Indoor unit and Outdoor unit.CH06Problem in Refrigerant (Outlet side) sensor.CH08Problem in Water Tank sensor.CH09PCB Program (EEPROM) Fault due to electrical or mechanical damage.CH13Problem in Solar-thermal sensor.CH14Problem in Flow Switch (open while water pump running, or closed while pump not…CH15Water pipe overheated (leaving water temperature above 72°C).CH16Problems in sensors (general sensor fault).CH17Problem in Water-inlet sensor.CH18Problem in Water-outlet sensor.CH19Problem in Water-interlim sensor.CH21DC Peak (IPM Fault)CH22Max CT (over current detected by current transformer).CH23DC Link voltage is low (1phCH24High Pressure / Low Pressure switch activated.CH25Input voltage is too low or too high.CH26Problem in DC Compressor positioning (position detect error).CH27PSC/PFC FaultCH28DC Link voltage is high.CH29High current at compressor phases (inverter compressor input current over 30A).CH32Temperature at discharge pipe is too high (105°C or above).CH39Transmission error between PFC Micom and INV Micom.CH40Problem in CT (current transformer) sensorCH41Problem in discharge-pipe temperature sensor (inverter side).CH44Problem in ambient temperature sensor.CH45Problem in condenser-pipe temperature sensor.CH46Problem in suction-pipe temperature sensor.View all 40 error codes
CH51Over capacity combinationCH52Bad communication between internal PCBs (Inverter PCB to Main PCB).CH53Bad communication between Indoor unit and Outdoor unit (outdoor-side code for…CH60EEPROM Checksum mismatched.CH61Temperature at condenser-pipe is too high (65°C).CH62Temperature at heatsink is too high (85°C).CH63Temperature at condenser-pipe is too low.CH65Problem in heatsink temperature sensor (short if ≥130°C, open if < -30°C).CH67BLDC motor fan lock (outdoor)CH73AC input instant over current error
Service modes (1)
- Test Run (Function Code 01)Access control panel Function Code settings
Full entry steps, exit procedures, and test sequences are available in Max.
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