High Transformer Temperature (Forced Shutdown)

What does XFMR_TEMP_F mean?

The internal transformer of the Sunny Boy SB50US-80US-IUS094030 has reached an excessively high temperature, causing the inverter to cease operation. The cooling fans will automatically activate and run at maximum speed to reduce the temperature.

• Excessive temperature of the internal transformer.

Click steps to track your progress.

1. 1

   Check the function and airflow of the inverter's cooling fans.