Welcome to the forum.
Below in my signature you will find many links to items for you coach.
Here are a couple form some of the links, ----
#1 -----
#2
When you change out your batteries you need to disconnect the negative battery cables first than your positive cables.
When you reconnect the batteries you should hook up the positive cables first than your negative cable.
Its a good idea to pull fuses or the small 12v battery plug on slide control board because positive battery spikes can cause your slides to operate and if they are locked will do some damage to the slide fascia boards or side tables on bedroom slide.
If you lucky you may have a fuse blown to your rear view display
this link from
QT's # 3 should point you to fuse locations.
Enjoy the forum and safe travels.