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kp_utah's avatar
kp_utah
Explorer
Mar 18, 2017

Troubleshooting failed solar - Water in your junction box

So, my renogy solar panels stopped working. After some digging, I found a small amount of water in my junction box on the roof. I think some snow and ice created havoc up there and some how leaked int...
azrving's avatar
azrving
Explorer
Mar 18, 2017
Some volt meters use a battery inside them and will give wacky readings if it's low.

From there you should see panel voltage at the junction strip and the same voltage at the controller.

If you remove the panel wires from the junction box and use an amp meter between POS and negative you will read isc amperage short circuit. Just like checking open circuit Voltage it will depend on sunlight

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