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Error Code - 7 - GridF.OutLim

Definition: Grid voltage frequency is abnormal, or power grid is not detected.

Possible Causes: 

  1. Grid frequency is abnormal
  2. Cable connection between the inverter and the grid is poor


  1. Observe for 10 minutes and see whether the alarm will be eliminated automatically
  2. Check whether the grid frequency is within the specified range
  3. Check whether the cable between the inverter and power grid is disconnected or has any fault
  4. Contact after-sales service personnel

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