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321

Cabinet Over-Temp

Huawei · SUN2000 8-28KTL Solar Inverter

¿Qué significa 321 ?

A major fault indicating that the internal temperature of the SUN2000 cabinet is too high, potentially due to poor ventilation, high ambient temperature, or a malfunctioning internal fan. This can lead to reduced performance, shutdown, or damage to internal components.

Causas comunes

  • The SUN2000 is installed in a place with poor ventilation.
  • The ambient temperature is too high.
  • The internal fan is not working.

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Check whether the ambient temperature for the SUN2000 exceeds its upper limit.

  2. 2

    Improve ventilation around the SUN2000 to decrease the temperature.

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