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431
Software problem
Fronius · Symo Advanced Manual
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An internal software error or corruption has occurred, preventing the inverter from feeding energy into the grid. This requires specific actions to reset or update the software.
Häufige Ursachen
- Corrupted inverter firmware
- Software bug or malfunction
- Unexpected system state due to software logic
Reparaturschritte & Checkliste
Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.
- 1
Perform an AC reset by switching the automatic circuit breaker off and on again.
- 2
Update inverter firmware to the latest version.
- 3
If this status code is displayed all the time, notify a Fronius-trained service engineer.
Verifizierte technische Daten. Zuletzt aktualisiert: March 2026
Verwandte Fehlercodes
Quelle: Fronius Symo Advanced Manual