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103
DC Over Voltage
Huawei · SUN2000 8-28KTL Solar Inverter
¿Qué significa 103 ?
A major fault caused by excessive PV string output voltage, where the open-circuit voltage of the PV string exceeds the maximum operating voltage of the SUN2000. This can damage the inverter's DC input stage and prevents power generation.
Causas comunes
- Too many PV modules connected in series, resulting in the PV string open-circuit voltage being greater than the maximum operating voltage of the SUN2000.
Pasos de reparación & Lista de verificación
Haga clic en los pasos para seguir su progreso.
- 1
Check the number of PV modules connected in series for the affected string.
- 2
Reduce the number of PV modules connected in series until the PV string output voltage drops to the specified operating range for the SUN2000.
Datos técnicos verificados. Última actualización: March 2026
Fallas relacionadas
Fuente: Huawei SUN2000 8-28KTL Solar Inverter