Sungrow SG2K-S / SG2K5-S / SG3K-S / SG3K-D / SG5K-D PV Grid-Connected Inverter error LED indicator cannot be lit

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Sungrow LED indicator cannot be lit error

Solution

  • Disconnect the AC circuit
  • Rotate the optional DC switch to “OFF”.
  • Check the polarity of DC input.
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