u/JRZane

Renogy RNG-100mb double solar cell failure

I’m not sure how long I had gone before I noticed, but I saw I was getting zero voltage input from my solar. I have 2 100w panels that are about 6-7 years old.

I did a little troubleshooting which resulted in me putting my multimeter directly onto the leads of both panels and I was reading about 0.9v from each. I tested both in front of and behind the diode. Same reading. PV at the controller is 0, in fact sometimes -.6 when I put the meter on it directly. Fuse is good and wiring connections seem clean.

It seems to me the panels are dead. Am
I missing something? Suggestions?

reddit.com
u/JRZane — 8 days ago