419

Unique ID conflict

Fronius · Primo GEN24 Operating Instructions

What does 419 mean?

This code indicates a conflict with the inverter's unique ID. This typically occurs in multi-inverter installations or after component replacement, where the system detects duplicate or invalid unique identifiers, potentially disrupting communication or operation.

Common Causes

  • Duplicate unique ID assigned to multiple inverters in a network.
  • Corrupted unique ID stored in the inverter's memory.
  • Incompatibility after a PC board replacement if the ID is stored on the replaced component.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    If the status code is displayed continuously, notify a Fronius-trained service engineer for diagnosis.

  2. 2

    In multi-inverter setups, verify that each inverter has a unique ID configured in its settings and correct any conflicts.

  3. 3

    Perform an AC reset to clear any transient ID recognition issues.

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Verified technical data. Last updated: March 2026

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Source: Fronius Primo GEN24 Operating Instructions