Fronius Symo Hybrid Inverter Code 302 — Overcurrent (DC) or battery not detected

What does 302 mean?

A temporary overcurrent condition has been detected on the DC side, or the battery is not being detected. This causes a short-term interruption in feeding energy, and the inverter will attempt to restart.

• Sudden surge in DC current
• Battery connection issue
• Battery fault
• Internal inverter DC component issue

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

   Verify that the battery is correctly connected and switched on.

3. 3

   If the status code is displayed all the time, notify a Fronius-trained service engineer.