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. 1

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

Browse all codes in this manual (60)
Verified technical data. Last updated: March 2026

Related Faults

Source: Fronius Symo Advanced Manual