Fronius Symo Hybrid Inverter Code 305 — No power being fed in, despite closed relays

What does 305 mean?

The inverter is not feeding power into the grid even though the internal relays are closed, indicating a discrepancy. This causes a short-term interruption, and the inverter will attempt to restart.

• Internal relay malfunction
• Grid conditions preventing feed-in
• Measurement error within the inverter

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

   Ensure there are no external factors (like grid outages) preventing energy feed-in.

3. 3

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