Alarm 238 - Hot gas alarm

What does 238 mean?

The Heat Pump has registered 3 repeated alarms for high discharge temperature within 4 hours. This indicates the compressor is running too hot.

• Disruption in the refrigerant circuit (e.g., blockages).
• Incorrect refrigerant levels.
• Problem with compressor operation.

Click steps to track your progress.

1. 1

   Ensure the outdoor unit's airflow is not restricted by debris or snow, as this can affect cooling.

2. 2

   Check the indoor module/control module for other active alarms that might relate to system flow or pressure.

3. 3

   Turn off the Heat Pump for a short period (10-15 minutes) and then restart it to see if the alarm clears.

4. 4

   If the alarm persists, contact a qualified NIBE service technician, as this likely requires refrigerant circuit inspection.