I don't know your rig set up either, but have a thought, is there one of those 12v in-line circuit breakers that may have tripped, exposing a little flag that you push in to reset?
Ours were located underneath near the battery box, class C rig.
I built an extra battery box support and relocated mine to where they were easier to access.
You used to have to lay on the ground, scooch under the RV some, to get to them!
Just thinkin'
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Rusty
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