ErrorKhoj

Daikin Air Conditioner

Daikin AC H6 error

Compressor start / rotation fault

Needs a technicianCross-checked from 2+ sources

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

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 H6 mean on a Daikin Air Conditioner?

Compressor start / rotation fault. The compressor did not start, lost its position signal, or is not turning properly.

Can I fix Daikin Air Conditioner error H6 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 H6?

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

Other Daikin AC codes

E7 Outdoor fan motor fault E8 Overcurrent / compressor overload EA 4-way (reversing) valve fault F3 Compressor overheating F6 High pressure / overload protection H0 Compressor start / rotation fault H8 Current sensor (CT) fault H9 Outdoor air temperature sensor fault J3 Compressor discharge temperature sensor fault J6 Outdoor coil (condenser) temperature sensor fault L3 Inverter board / power module protection L4 Inverter board / power module protection

All Daikin Air Conditioner error codes

Same code on other brands

H6 Indoor fan motor faultBlue Star AC H6 Indoor fan motor faultGree AC

Sources

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

Last checked: 2026-10-20