ErrorCodeDoctor
Daikin · Air Conditioner

Daikin Air Conditioner C6 error code

Difficulty: Hard · Cost: $100–$350 · Duration: Requires professional service

The C6 error means your Daikin air conditioner detected a fault with the indoor unit fan motor sensor or fan control driver PCB. This can also be caused by a defective connection of the capacity setting adaptor or an incorrect field setting. Contact a qualified technician.

Common causes

  • Defective fan PCB
  • Defective connection of the capacity setting adaptor
  • Incorrect field setting

How to fix it

  1. 1

    Contact a qualified technician to inspect the fan PCB, capacity setting adaptor connection, and field settings

Related Daikin Air Conditioner error codes

1

A0

An external protection device connected to the indoor unit has been activated

hard
2

A1

A fault was detected in the indoor unit PCB (control board)

hard
3

A3

The drain level control system has detected an abnormality — drain may be clogged

medium
4

A5

Freeze-up protection (cooling) or high pressure control (heating) has activated — check the air filter

easy