High Transformer Temperature (Warning)

What does XFMR_TEMP_W mean?

This warning indicates that a previous condition of high transformer temperature in the Sunny Boy SB50US-80US-IUS094030 has subsided, and the inverter has resumed operation. It serves as an alert to investigate the cooling system to prevent recurrence.

• Prior excessive transformer temperature.
• Potential issue with cooling fan function.

Click steps to track your progress.

1. 1

   Check the function of the inverter's cooling fans.