Fronius Symo Hybrid Inverter Code 308 — Intermediate circuit voltage too high

What does 308 mean?

The voltage in the inverter's intermediate circuit has become excessively high. This causes a short-term interruption in feeding energy, and the inverter will attempt to restart.

• Grid voltage fluctuations
• Internal inverter component malfunction
• Rapid changes in solar input

Click steps to track your progress.

1. 1

   Observe the inverter to see if it successfully repeats its start-up routine and resumes operation.

2. 2

   Check your electrical panel for any issues or tripped breakers.

3. 3

   If this status code keeps recurring, contact your system fitter for diagnosis.