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Bell symbol

Bell symbol on display — General error

Fujitsu · Waterstage Heat Pumps

What does Bell symbol mean?

The display shows a bell symbol, indicating that an error has occurred in the heat pump system. This is a general error message that requires further investigation by a technician.

Common Causes

  • Various internal system faults.
  • Sensor issues or malfunctions.
  • Communication problems within the system.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Press the info button to check for more specific error details if available on the display.

  2. 2

    Try resetting the heat pump by briefly turning off and on the main power supply (e.g., at the circuit breaker).

  3. 3

    If the bell symbol persists, contact your heating technician for diagnosis and repair.

Browse all codes in this manual (3)
Verified technical data. Last updated: April 2026

Related Faults

Error 370Error 370 — Temporary communication loss after power cutKey symbolKey symbol on display — Service or special mode message
Source: Fujitsu Waterstage Heat Pumps
Open Manual (Page 17)Search more codes in this manual