Alarm 240 - Low evaporation temp

What does 240 mean?

The Heat Pump has registered 5 repeated alarms for low evaporation temperature within 4 hours. This indicates a problem with the refrigerant circuit and the heat absorption process.

• Lack of refrigerant in the system.
• Blocked expansion valve.
• Significant wind effect on the outdoor unit evaporator.

Click steps to track your progress.

1. 1

   Check the outdoor unit for any external blockages like leaves or snow that might restrict airflow over the evaporator.

2. 2

   Monitor the outdoor temperature, as extremely low temperatures can sometimes contribute to this issue.

3. 3

   Turn off the Heat Pump at the main power switch for a few minutes, then restart it.

4. 4

   If the alarm continues, contact a qualified NIBE service technician, as this may indicate a refrigerant leak or issue with the expansion valve.