LG Air Conditioner
LG AC CH67 error
Outdoor fan motor fault
Try a reset once. If it comes back, a trained technician should repair it.
Also shown as: 67
What it means
The outdoor unit’s fan is locked, too slow or not sending its speed signal, so the AC stops to protect the compressor.
Common causes
- Fan blocked by leaves, a bird nest or debris
- Faulty fan motor or capacitor
- Loose wiring or faulty outdoor board
Try this at home first
Tick each step as you go
When to call a technician
If the code returns, a technician should check the fan motor and outdoor board.
Safety first
Always switch off at the wall socket or MCB before touching any part. Do not open the outdoor unit, control boards or gas pipes yourself — they carry high voltage and pressure.
Frequently asked questions
What does CH67 mean on a LG Air Conditioner?
Outdoor fan motor fault. The outdoor unit’s fan is locked, too slow or not sending its speed signal, so the AC stops to protect the compressor.
Can I fix LG Air Conditioner error CH67 myself?
You can try a reset first: Switch off at the MCB. If the code returns, call a technician.
Is it safe to keep using the Air Conditioner with CH67?
Avoid repeated restarts; running with this fault can cause more damage.
Other LG AC codes
Sources
We write every explanation in our own words from these references.
Last checked: 2026-10-20