Originally Posted by Gtori
I have a 2015 Jayco 23XB and am wondering the same - where is the fuse between the battery and electric center (where the breakers and other fuses are). I crossed the battery cables, blew the 30 amp fuse, replaced that but still no 12v power from the battery. When I plug the trailer to my home, I have power every where else. Any help would be greatly appreciated. Thanks
A common issue most people miss. A lot of times when you cross battery terminals (either by shorting across or when installing, placing the wrong polarity), the inline 30 amp fuse will blow. However, the fuse (or fuses) in the side of the converter will sometimes blow as well. So what happens is you replace the inline 30 amp and still nothing from the 12V systems works but all the 120AC stuff works.
You have to locate your converter. Usually behind your fuse panel or sometimes behind a panel (inside) close to where the shore power plug in is at.
once you locate the converter, check the fuses that are in the side of it (often 40AMP). Almost always a royal pain to pull and replace.