AC Error Codes → LG
LG AC Error Codes — Complete List & Fixes
LG split ACs show CH (check) codes on the indoor display. Dual-inverter models display the code directly; older models blink LEDs.
15 codes explained · DIY checks included · Same-day LG AC repair in Ahmedabad
👆 Select your AC brand and type the code shown on your AC display or remote
All LG AC Error Codes
Indoor air temperature sensor fault
Likely causes: Sensor open/short circuit
What to do: Sensor replacement — a quick technician fix.
📱 Book Same-Day Repair for CH01Indoor pipe (coil) sensor fault
Likely causes: Coil thermistor failure
What to do: Needs sensor replacement.
📱 Book Same-Day Repair for CH02Indoor-outdoor communication error
Likely causes: Interconnecting cable fault, PCB failure
What to do: Restart at the MCB once; if it returns, wiring and boards need testing.
📱 Book Same-Day Repair for CH05Outdoor pipe sensor fault
Likely causes: Outdoor coil thermistor failure
What to do: Outdoor sensor replacement.
📱 Book Same-Day Repair for CH06Indoor EEPROM error
Likely causes: Indoor PCB memory chip fault
What to do: PCB repair or replacement required.
📱 Book Same-Day Repair for CH09Indoor fan motor lock / feedback error
Likely causes: Blower jammed, BLDC motor failure
What to do: Switch off and book a repair — check nothing is blocking the blower.
📱 Book Same-Day Repair for CH10DC peak overcurrent (compressor)
Likely causes: Compressor or inverter PCB fault
What to do: Switch off the AC and call for service.
📱 Book Same-Day Repair for CH21DC link low voltage
Likely causes: Low mains voltage, faulty inverter board
What to do: Check supply voltage/stabilizer first; if normal, the inverter board needs testing.
📱 Book Same-Day Repair for CH23DC compressor position error
Likely causes: Compressor startup failure
What to do: Needs inverter and compressor diagnosis.
📱 Book Same-Day Repair for CH26Discharge pipe temperature too high
Likely causes: Low gas, blocked condenser
What to do: Clean the outdoor unit; if the error returns, gas pressure must be checked.
📱 Book Same-Day Repair for CH32Refrigerant leak detected
Likely causes: Gas leak in piping or coil
What to do: Leak detection and repair needed — do not just top up gas.
📱 Book Same-Day Repair for CH38Outdoor air sensor fault
Likely causes: Ambient thermistor failure
What to do: Outdoor sensor replacement.
📱 Book Same-Day Repair for CH44Condenser coil temperature high
Likely causes: Dirty condenser, poor ventilation around outdoor unit
What to do: Clean the condenser coil and clear space around the outdoor unit.
📱 Book Same-Day Repair for CH61Heatsink temperature high
Likely causes: Inverter heatsink clogged with dust
What to do: Outdoor unit deep-clean required.
📱 Book Same-Day Repair for CH62Outdoor fan motor lock
Likely causes: Fan obstruction or motor failure
What to do: Check for obstructions; otherwise the fan motor needs replacement.
📱 Book Same-Day Repair for CH67Disclaimer: error codes can vary by model and year. This guide covers the most common LG split AC codes in India. When in doubt, send us a photo of your AC display on WhatsApp — diagnosis advice is free.
Other Brand Error Codes
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