be aware there are train tracks near by (1/4 mile )and the loud whistle is all times of the night and i mean at 1:30 am ...and not just one train. and in the day time also.
I hope you can help shed some light on my problem....
I'm working on my 2023 Winnebago 1720FB; particularly the mini-breaker/buss bar shown in your right-hand most picture. Below I copied a link to a Winnebago wiring diagram for this buss bar.