MeganRV I know this is not what you asked but, it doesn't seem that you know a whole lot about how the systems work and few of us did when we bought our first RV. Sometimes it is more expedient to go to a professional rather than ask for a step by step process to find a problem.
There is a great shop in Golden, it is Tilden your complete car care center at 17981 W. Colfax Ave and the phone number is 303-279-5181. They are directly across the street from a campground we have used a couple of times. Tilden's was recommended by the staff and they have other recommendations. I delt with Kevin Davenport and I'll bet he'll not only find your problem he'll explain the system to you as he works.
Just a quick guess about your problem is that the converter/charger isn't feeding the batteries when you're plugged in. You seem to have 12vdc because your not complaining about that.
The more I think about your post, either you really don't know anything about RV systems or you are a troll. Either way you have my two cents worth.