Daikin Air Conditioner
Daikin AC EA error
4-way (reversing) valve fault
Try a reset once. If it comes back, a trained technician should repair it.
What it means
The valve that switches between cooling and heating did not change over correctly.
Common causes
- Stuck 4-way valve
- Faulty valve coil or wiring
- Low gas
Try this at home first
Tick each step as you go
When to call a technician
A technician must test the valve and its coil.
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 EA mean on a Daikin Air Conditioner?
4-way (reversing) valve fault. The valve that switches between cooling and heating did not change over correctly.
Can I fix Daikin Air Conditioner error EA myself?
You can try a reset first: Switch off for 10 minutes and restart in cooling mode. If the code returns, call a technician.
Is it safe to keep using the Air Conditioner with EA?
Avoid repeated restarts; running with this fault can cause more damage.
Other Daikin AC codes
Sources
We write every explanation in our own words from these references.
Last checked: 2026-10-20