LG Air Conditioner
LG AC CH26 error
Compressor start / rotation fault
Try a reset once. If it comes back, a trained technician should repair it.
Also shown as: 26
What it means
The compressor did not start, lost its position signal, or is not turning properly.
Common causes
- Low voltage at start-up
- Faulty compressor wiring or inverter board
- Jammed or damaged compressor
Try this at home first
Tick each step as you go
When to call a technician
If it returns, a technician must test the compressor and inverter board. Don’t keep restarting it.
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 CH26 mean on a LG Air Conditioner?
Compressor start / rotation fault. The compressor did not start, lost its position signal, or is not turning properly.
Can I fix LG Air Conditioner error CH26 myself?
You can try a reset first: Switch off for 15 minutes and restart once. If the code returns, call a technician.
Is it safe to keep using the Air Conditioner with CH26?
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