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Fan speed symbol

Fan speed symbol on display — Fan speed changed from normal setting

NIBE · F1245 Ground Source Heat Pumps

What does Fan speed symbol mean?

This symbol appears when the fan speed has been adjusted from its normal setting. This function is only available if the NIBE FLM accessory is installed and activated.

Common Causes

  • Fan speed has been manually adjusted
  • Fan speed is being controlled externally via a contact function (configured in Menu 5.4)
  • NIBE FLM accessory not correctly installed or activated if function is unintended

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    If you intended to change fan speed, confirm the setting is as desired.

  2. 2

    If fan speed changed unexpectedly, check external contact functions for fan speed activation (see page 27 for configuration in Menu 5.4).

  3. 3

    Ensure the NIBE FLM accessory is correctly installed and activated if you are using this function.

Browse all codes in this manual (17)
Verified technical data. Last updated: April 2026

Related Faults

Additional heat blocked symbolAdditional heat blocked symbol on display — Auxiliary heating is temporarily stoppedBrine Temperature Difference IncorrectBrine Temperature Difference Incorrect (2-5 °C) — Brine flow imbalanceBuzzer alarmBuzzer alarm sounds — An internal alarm has been activated
Source: NIBE F1245 Ground Source Heat Pumps
Open Manual (Page 35)Search more codes in this manual