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Hot gas alarm

Hot gas alarm — Excessive hot gas temperature

Nibe · Ground Source Heat Pumps

What does Hot gas alarm mean?

This alarm indicates the compressor has stopped three times in 240 minutes because the hot gas temperature exceeded 135 °C, indicating a defective compressor.

Common Causes

  • Defective compressor

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Contact a service technician to diagnose and repair the compressor.

  2. 2

    Ensure proper ventilation and operating conditions for the heat pump.

Browse all codes in this manual (49)
Verified technical data. Last updated: April 2026

Related Faults

Alarm bell in displayAlarm bell symbol in display — Malfunction detectedAlarm no. 54Alarm no. 54 — Motor protection breaker trippedAlarm numbers 70-99Alarm numbers 70-99 — Communication interrupted
Source: Nibe Ground Source Heat Pumps
Open Manual (Page 48)Search more codes in this manual