Wattage difference at controller
m1noel Registered Users Posts: 1 ✭
I have 5-100W panels on the roof of my RV with a Renogy 40A controller. Everything has been fine until this week. The controller is showing panels connected but only at 12.2-12.5 volts and 0 watts. If I disconnect the wires, my multi tester shows 19-21V coming from the panel. I have tried 3 different controllers now with the same result, no charge. I have checked the connections between panels and each panel individually. I cannot figure this out and am losing sleep trying to come up with the solution.
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