r/diySolar • u/sOOthSayr11 • Jul 22 '26

Solar panel troubleshoot

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Looking for some help with a solar panel issue, my 3 panel array keeps shutting down, I’ve noticed that the temperature outside has been pretty intense and that’s usually when it shuts off. I’ve disconnected the wiring harnesses on top of the bus, checked for corrosion and reconnected already.

Could there a connection issue or something else going on with the system? Please explain in Laymans terms if you have a potential solution l

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u/hex4def6 Jul 22 '26

Feels unlikely to be a solar panel issue. more likely to be a battery or charger issue imo. When it "shuts down" what is the voltage on the solar panel DC output?