Kyocera Solar Panel problem
I hope someone can help with the problem I have with my Kyocera solar panels. I have 12 Kyocera panels. A bank of 8 x 80watt panels that are 10 years old and a bank of 4 x 85watt panels that were added 6 years ago to make a total of 12 panels connected together. I noticed that the output was down so I did some testing by monitoring my Plasmatronics regulator and found that the four newer panels are producing full output (about 5amps each) and the older 8 panels are only producing from .4amps to 2.8amps each. I have disconnected all wiring on the 8 panels and checked each panel with my multimeter and they all read about 5amps with good sun so the panels seem to be working perfectly well. Then I tried connecting just one and it only reads .4amps. Then add one by one and all are reading between .4amps to 2.8 amps. All the connections and wiring is fine and the newer four panels are connected to the same junction box and they are reading about 5.amps. I just can't understand how the multimeter test is good then the regulator reading is low. I did my testing in equalise mode to make sure I was getting maximum amps. Hope you can help.
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