LEDs on Fronius inverters: Responding correctly to error messages, 13. January 2026

There are two important indicators on the front of your Fronius inverter:

• Left: The operating LED – green during normal operation.
• Right: The communication LED – blue when the connection is stable.

But what happens if an LED suddenly lights up red? Don't worry, red does not mean panic, it simply indicates an error message.This webinar is aimed at system owners and explains

• How to interpret the LED signals correctly
• How to respond correctly to error messages
• How to solve problems without professional help of an electrician 

As usual, our experts will be available in the chat to answer any individual questions you may have during the webinar.