Red LED continously on — Ground fault detected

What does Red LED continously on mean?

The Red LED on the Sunny Boy inverter is continuously on, indicating that a ground fault has been detected. This signal takes precedence over other LED states (green or yellow). The inverter will not operate until the fault is corrected.

• Ground fault in the PV system.

Click steps to track your progress.

1. 1

   Contact your installer to have the ground fault corrected.

2. 2

   Your installer can find detailed instructions on correction errors in the inverter installation guide.

3. 3

   Do not attempt to diagnose or fix the ground fault yourself, as it involves electrical safety risks.