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Compressor blocked symbol

Compressor blocked symbol — Compressor is not running

Nibe · F1155 Heat Pumps

What does Compressor blocked symbol mean?

This symbol indicates that the heat pump's compressor is currently blocked or not operating. This can happen if the operating mode is set incorrectly, if blocking is scheduled, or if an alarm is active.

Common Causes

  • Incorrect operating mode selected.
  • Scheduled blocking of the compressor.
  • An active alarm preventing compressor operation.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the selected operating mode in menu 4.2.

  2. 2

    Review scheduled blocking settings in menu 4.9.5.

  3. 3

    Check for any active alarms indicated by a red status light or alarm bell icon.

  4. 4

    Reset any active alarms if applicable.

Browse all codes in this manual (27)
Verified technical data. Last updated: April 2026

Related Faults

AUX output configurationAUX output configured for specific functionAdditional heat blocked symbolAdditional heat blocked symbol — Immersion heater is not runningAlarm bell iconAlarm bell icon on display — An alarm condition is active
Source: Nibe F1155 Heat Pumps
Open Manual (Page 32)Search more codes in this manual