What does the code indicate?
For Daikin air conditioner, code A5 is described by the manufacturer source as “Indoor unit overheating”. Verify the exact model and series because code meanings can vary between product families.
Safe check order
- Record the code from the controller/display and photograph it if possible.
- Check that filters and visible air inlets/outlets are not obstructed.
- Do not work on refrigerant circuits, electrical wiring or sealed units.
When should use stop?
Switch off and safely isolate the air conditioner if water reaches electrical parts, there is burning smell/smoke or the breaker repeatedly trips. Do not open the refrigerant circuit or interfere with refrigerant pipes.
Model note
Model and series differences can change the meaning of an error code. Verify the product label and manufacturer documentation.
Manufacturer source: Daikin Türkiye
Daikin Air Conditioner A5Daikin A5 error code