CodeRegistry
Brands
  1. Home
  2. Daikin
  3. Altherma 3 H HT W
  4. Emergency mode text
About·Privacy·Terms

CodeRegistry — Your global library for technical solutions.

For your safety: always follow the equipment manufacturer’s official manuals. CodeRegistry is an independent help site and is not affiliated with the brands listed here.

Emergency mode text

'Emergency' displayed — Heat pump failure or forced off

Daikin · Altherma 3 H HT W

What does Emergency mode text mean?

The unit is operating in 'Emergency' mode because the heat pump has failed or been forced off. Depending on settings, space heating might be reduced, and domestic hot water may not be available.

Common Causes

  • Heat pump failure or has been switched off

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the user interface for specific error messages related to the heat pump failure.

  2. 2

    Review the 'Emergency' mode settings (auto/manual) in the error menu if available.

  3. 3

    Contact your installer to address the heat pump issue.

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 56)Search more codes in this manual