AC power in is good at input terminals. Green LED and fan are on. DC 120amp fuse on Neg terminal in bottom right is good. Jumped across it to test just in case. Has anyone replaced the internal fuse on the AC input? I have not opened it up yet, but figure there is a fuse on the AC input I could replace with alternate . I don't want to send it in because we are cruising now. Thanks for any help.