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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. 1

    Check the number of PV modules connected in series for the affected string.

  2. 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.

Ver todos los códigos en este manual (26)
Datos técnicos verificados. Última actualización: March 2026

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Fuente: Huawei SUN2000 8-28KTL Solar Inverter