415
Safety cut-out via option card or RECERBO has triggered
Fronius · Symo Advanced Manual
What does 415 mean?
An external safety device, such as an option card or a RECERBO unit, has activated a safety cut-out. This indicates a critical fault condition that requires the inverter to stop feeding energy into the grid.
Common Causes
- External safety device detected a fault condition (e.g., overcurrent, overvoltage, ground fault)
- Malfunction or incorrect wiring of the option card or RECERBO unit
Repair Steps & Checklist
Click steps to track your progress.
- 1
If this status code is displayed all the time, notify a Fronius-trained service engineer.
Verified technical data. Last updated: March 2026
Related Faults
Source: Fronius Symo Advanced Manual