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ErrorLib — Industrial Fault Code Library

Disclaimer: ErrorLib is an independent technical reference tool. While we aim for accuracy, always verify with the manufacturer’s official service manuals before performing maintenance on industrial equipment. ErrorLib is not affiliated with the brands listed.

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: April 2026

Related Faults

102AC voltage too high103AC voltage too low105AC frequency too high
Source: Fronius Symo Advanced Manual
Open Manual (Page 42)Search more codes in this manual