My PV 150 is displaying more than 1000V on the Voc line, and there’s a bleeping sound?
Tester is detecting more than 1000V through the positive and negative connections, which is more than the tester is rated for. This normally occurs when two strings are connected together, or there is more than one fuse closed in the combiner box. Test button must NOT be pressed. Tester should be disconnected from the system, and a closer inspection of the system carried out visually before re-connecting
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