Derating - Inverter reducing power due to high internal temperature

What does Derating mean?

The SMA Sunny Boy is reducing its output power because its internal temperature is too high. This is a warning, indicating that the inverter is managing its temperature to prevent damage.

• High internal temperature
• High ambient temperature
• Blocked fan intakes
• Dirty fans.

Click steps to track your progress.

1. 1

   Inspect the fan intakes and the general area around the Sunny Boy inverter for any blockages or poor ventilation.

2. 2

   Clean the fan intakes if they are dirty or obstructed.

3. 3

   Ensure the inverter is installed in a location with adequate airflow and within its specified operating temperature range.

4. 4

   Allow the inverter to cool down if the ambient temperature is very high.