Übersetzen...
401/404
Grid fault (Frequency Fluctuation)
SMA · Sunny Boy Solar Inverter
Was bedeutet 401/404 ?
The inverter has disconnected from the utility grid because a stand-alone grid was detected or a very large, short-term change in the power frequency occurred. This disconnection is a protective measure.
Häufige Ursachen
- Detection of a stand-alone grid (islanding condition).
- Significant short-term fluctuations in the power frequency.
Reparaturschritte & Checkliste
Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.
- 1
Check the grid connection for significant short-term frequency fluctuations.
Verifizierte technische Daten. Zuletzt aktualisiert: March 2026
Verwandte Fehlercodes
Quelle: SMA Sunny Boy Solar Inverter