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Hi, I have 2 SPF 3000TL 48volts in 240v 2 phases configuration. It works fine by more than a 6 months, and couple of days ago one of the units shows 0 volts, amp and watts on the PV’s. The other unit works fine. When I open the PV circuit it gave 130v (3 pannels 400W each) but when I pass the PV...