ErrorKhoj

LG Air Conditioner

LG AC CH32 error

Compressor overheating

Needs a technicianFrom brand’s official support

Try a reset once. If it comes back, a trained technician should repair it.

Also shown as: 32

What it means

The gas leaving the compressor is too hot, so the AC stops to protect the compressor.

Common causes

  • Low gas / leak
  • Dirty outdoor coil or poor air flow
  • Faulty sensor or expansion valve

Try this at home first

Tick each step as you go

When to call a technician

If it repeats, a technician should check gas pressure, the outdoor coil and the sensor.

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 CH32 mean on a LG Air Conditioner?

Compressor overheating. The gas leaving the compressor is too hot, so the AC stops to protect the compressor.

Can I fix LG Air Conditioner error CH32 myself?

You can try a reset first: Switch off and let it cool for 30 minutes. If the code returns, call a technician.

Is it safe to keep using the Air Conditioner with CH32?

Avoid repeated restarts; running with this fault can cause more damage.

Other LG AC codes

CH23 Inverter board / power module protection CH25 Power supply voltage problem CH26 Compressor start / rotation fault CH27 Overcurrent / compressor overload CH28 Inverter board / power module protection CH29 Overcurrent / compressor overload CH40 Current sensor (CT) fault CH41 Compressor discharge temperature sensor fault CH44 Outdoor air temperature sensor fault CH45 Outdoor coil (condenser) temperature sensor fault CH46 Suction pipe temperature sensor fault CH48 Outdoor liquid-pipe temperature sensor fault

All LG Air Conditioner error codes

Sources

We write every explanation in our own words from these references.

Last checked: 2026-10-20