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Alarm bell in information window

Alarm bell in information window — Malfunction detected

Nibe · Air Conditioning

What does Alarm bell in information window mean?

An alarm bell symbol appearing in the information window signifies a malfunction has occurred within the heat pump. This is usually accompanied by a solid red status lamp.

Common Causes

  • Malfunction detected by the heat pump

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Note the specific alarm message shown on the display.

  2. 2

    Navigate to the alarm menu to read the detailed meaning and recommended actions.

  3. 3

    Attempt to reset the alarm via the display. If the issue continues, seek professional assistance.

Browse all codes in this manual (95)
Verified technical data. Last updated: April 2026

Related Faults

107Sensor flt: BT7 HW sens top 107 — Sensor fault: Hot water sensor151Sen flt: CL11- BT51 pool temp sensor 151 — Sensor fault: Pool temperature sensor152Sen flt: CL12- BT51 pool temper- ature sensor 152 — Sensor fault: Pool temperature sensor
Source: Nibe Air Conditioning
Open Manual (Page 69)Search more codes in this manual