LG Air Conditioner
LG AC CH10 error
Indoor fan motor fault
Try a reset once. If it comes back, a trained technician should repair it.
Also shown as: 10
What it means
The indoor blower fan is not turning at the right speed, or its speed signal is missing.
Common causes
- Blower jammed by dirt or a loose part
- Faulty indoor fan motor or capacitor
- Loose motor plug or faulty control board
Try this at home first
Tick each step as you go
When to call a technician
If it repeats, a technician must test the motor, capacitor and 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 CH10 mean on a LG Air Conditioner?
Indoor fan motor fault. The indoor blower fan is not turning at the right speed, or its speed signal is missing.
Can I fix LG Air Conditioner error CH10 myself?
You can try a reset first: Switch off, wait 5 minutes and restart. If the code returns, call a technician.
Is it safe to keep using the Air Conditioner with CH10?
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