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Fault - 7 - OV-DC: DC voltage is too high

Cause-

  • Inverter detects High DCV


Solution-

  • Test – DC switch OFF
  • Check DC at the inverter test points
  • If DCV is high, too many panels in the string 
  • Test – DC Switch ON
  • Check LCD reading, may be a bad measurement circuit
  • Replace inverter

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