[RE-wrenches] Arc Fault problem in FM100

[John Blittersdorf]

Dana, I'm the one feeling like an idiot.  Turns out the ground fault fuse
was blown in a brand new controller.  I did't have my
meter with me to test the fuse and had to go back the next day.  I had a
good fuse in the 2nd controller not yet hooked up so
I could have borrowed that one and had the system up and running. Only cost
me 4 hours of drive time by not having my meter.

John Blittersdorf


On Sat, Mar 8, 2025 at 11:32 AM Dana Orzel via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> Pull the ground jumper in the FM100.
>
> Double check all terminal connections in the Power center related to the
> FM100. Do the pull test carefully,
>
> I once missed tightening a neutral that was passing current & then not. I
> finally heard a slight crackle sound as I turned the array input & battery
> breaker at the same time to on, did the pull test [moved wires & the Fm100
> lite up], then Felt like an idiot! Tightened the neutral & all good.
>
>
>
> _________________________________________________________
>
> Dana Orzel                GREAT SOLAR WORKS!
>
> C – 208.721.7003      E – dana at solarwork.com
>
> W - www. greatsolarworks.com     www.solarwork.com
>
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