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Error / Malfunction text

Error or Malfunction on display — See error details

Daikin · Altherma 3 H HT W

What does Error / Malfunction text mean?

The home screen shows 'Error' or 'Malfunction' depending on the issue's severity. This indicates a problem with the system that needs attention. You can get more information from the unit's menu.

Common Causes

  • System fault requiring investigation

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Press the left dial to open the main menu.

  2. 2

    Navigate to the 'Error' option and select it.

  3. 3

    Press the dial again on the error screen to see a detailed description.

Browse all codes in this manual (11)
Verified technical data. Last updated: April 2026

Related Faults

Blinking blue LEDBlinking blue LED — Unit is in standby modeBlinking red LEDBlinking red LED — An error has occurredContinuous blue LEDContinuous blue LED — Unit is operating
Source: Daikin Altherma 3 H HT W
Open Manual (Page 54)Search more codes in this manual