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  • Author

But why. Over a weekend. Was showing the error for last few days but then coming online. Could also be panel damage or water ingress.

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  • Author

1 array of 15 panels is faulty. By process of elimination found whuch array. I have 4 strings of 15 x 255w panels. Installer on his way to sort the faulty string. 45 out of 60 panels working better than zero. The 3 phase inverter has 2 sets of 2 dc panel inputs and needs power to each to run ie if 2 strings connected must be 1 to each of dc input 1 and 2.

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5 hours ago, Gerald_db said:

1 array of 15 panels is faulty. By process of elimination found whuch array. I have 4 strings of 15 x 255w panels. Installer on his way to sort the faulty string. 45 out of 60 panels working better than zero. The 3 phase inverter has 2 sets of 2 dc panel inputs and needs power to each to run ie if 2 strings connected must be 1 to each of dc input 1 and 2.

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ok, so you're getting somewhere ;)

  • Author

Right. Sorted and running. Was neither array or earth issue but low incoming mains voltage that had dropped below the inverter programmed window. Expanded the range and working perfectly. Incoming ac voltage floating around 212V.

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