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Too cold (hot) in living room

Feeling too cold (or hot) — Temperature setting issue

Daikin · Altherma 3 HF

What does Too cold (hot) in living room mean?

The room is not at the desired temperature. This could be due to incorrect settings or the system not being able to reach the set temperature.

Common Causes

  • Desired room temperature is set too low (or high)
  • Desired leaving water temperature is set incorrectly
  • Weather-dependent curve is set incorrectly

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Increase (or decrease) the desired room temperature via the user interface.

  2. 2

    If the issue persists, check and adjust the room temperature preset value.

  3. 3

    Review and adjust the room temperature schedule if needed.

  4. 4

    Increase the desired leaving water temperature, checking compatibility with your heat emitter type.

  5. 5

    Adjust the weather-dependent curve settings.

Browse all codes in this manual (7)
Verified technical data. Last updated: April 2026

Related Faults

Blinking redBlinking red LED — Malfunction occurredErrorError message on screen — Malfunction detectedGurgling noisesGurgling noises after commissioning — Air in system
Source: Daikin Altherma 3 HF
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