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UC

UC - Malfunction of setting of centralized control equipment address (System)

Daikin · Simple Self Diagnosis by Malfunction Code | Daikin

What does UC mean?

The address setting for the centralized control equipment is incorrect or duplicated, causing a conflict.

Common Causes

  • Incorrect address configuration
  • Duplicate addresses
  • Faulty central controller

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Turn off power to the central control system.

  2. 2

    Review the address settings for all connected devices and the central controller.

  3. 3

    Correct any duplicate or incorrect addresses.

  4. 4

    Restore power and check if the error clears.

  5. 5

    If the issue persists, consult the central control system manual or a technician.

Browse all codes in this manual (60)
Verified technical data. Last updated: April 2026

Related Faults

6-06-0 - External protection device activated (Heat reclaim ventilator)6-16-1 - Malfunction of PCB (Heat reclaim ventilator)6-26-2 - Ozone density abnormal (Heat reclaim ventilator)
Source: Simple Self Diagnosis by Malfunction Code | Daikin
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