LG · Air Conditioner

LG Air Conditioner CH67 error code

Difficulty: Medium · Cost: $0–$150 · Duration: 10–15m

The CH67 error means your LG air conditioner's outdoor unit fan is not working correctly. The outdoor fan expels heat collected from inside your home to the outside environment. When it cannot spin the unit stops running to prevent the compressor from overheating. This code may also appear as EF on some models. Debris, snow buildup, or a foreign object lodged in the outdoor fan are the most common causes and are easy to check yourself. If no obstruction is found the fan motor will need professional inspection.

Common causes

Debris, leaves, or a foreign object blocking the outdoor fan blades
Snow or ice buildup around or inside the outdoor unit blocking the fan
Outdoor fan motor has malfunctioned or failed
Wiring fault affecting the outdoor fan motor

How to fix it

1

Turn off and unplug the air conditioner or switch off the circuit breaker
2

Inspect the outdoor unit for debris, leaves, snow, or ice blocking the fan blades
3

Carefully remove any obstruction — never insert hands or tools while power is on
4

If snow or ice is present allow it to melt naturally before restarting
5

Restore power and restart the unit to check if the error clears
6

If CH67 or EF persists with no visible blockage contact a technician to inspect the outdoor fan motor