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Alarm bell symbol

Alarm bell symbol — An alarm is active

Nibe · Air Conditioning

What does Alarm bell symbol mean?

This symbol appears when a malfunction has occurred. It is usually accompanied by a red status lamp and an alarm message on the display.

Common Causes

  • Various system malfunctions

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Press the OK button to view the alarm details.

  2. 2

    Navigate to 'info / action' to understand the alarm and potential fixes.

  3. 3

    If necessary, select 'reset alarm'. If the issue persists, contact your installer.

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
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