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103
AC voltage too low
Fronius · Symo Advanced Manual
¿Qué significa 103 ?
The inverter has detected that the AC voltage from the public grid is below permissible limits. The inverter disconnects from the grid and will resume operation once the voltage stabilizes within the acceptable range after a monitoring period.
Causas comunes
- Public grid voltage sag or under-voltage condition
- Heavy load transients on the local grid affecting voltage stability
Pasos de reparación & Lista de verificación
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- 1
If this status code keeps recurring, contact your system engineer for further grid analysis.
Datos técnicos verificados. Última actualización: March 2026
Fallas relacionadas
Fuente: Fronius Symo Advanced Manual