We have a Palomino Puma 295KBH that has a fuse right off the battery that goes up into the camper. The 15 amp fuse keeps blowing when I plug it into the truck or into the house. I couldn't even get my...
Sounds like 12 volt ground leak. How large is the wire that this fuse is on?
If you can see the AC to DC convertor easily there might be something grounding the output...say water dripping on it, corrosion or another reason for the high impedance ground leak.