ErrorCodeDoctor
Daikin · Air Conditioner

Daikin Air Conditioner UC error code

Difficulty: Hard · Cost: $80–$200 · Duration: Requires professional service

The UC error means your Daikin air conditioner system detected a duplicate address in the centralized control equipment. Each unit in a centralized control system must have a unique address. Contact a qualified technician to correct the address settings.

Common causes

  • Address duplication in the centralized control equipment
  • Defective indoor unit PCB

How to fix it

  1. 1

    Contact a qualified technician to identify and correct the duplicate address setting

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