WFCO Arterra WF-8725-PB Power Converter Here is what I have. My neighbor told me to plug into his 30 amp so I did. Well it was a 220 30 amp. My 12 volt side still works not 110 side. I found the internal fuse and it is blown. Not sure if it is soldered in or a pull out fuse and I cant tell what size it is. Can anyone help me with with the size and if I can just pull it out?