15 amp fuse issue

[Bluwater2828]

I've got a 98 jayco eagle. 28ft or 30ft not sure if that matters . Other day my heater quit working, noticed the light over the sink and the exhaust fan over the stove quit working, following day I noticed the ac wouldn't work either. The breaker was not tripped. Found a fuse panel under the couch. Has 6 , 15 amp fuses and one was blown. Replaced it blew instantly, everything turned off blew instantly, cut breaker replaced fuse flipped breaker blew fuse instantly, so I've got a short. Looked at everything I can see and nothing looks corroded or cut or burnt. Any ideas ?

[JEFF1963]

Might it be a GFCI is tripped somewhere and needs resetting? Have you had that '98 long? EDIT - Were you on shore power or just DC?

[Hohenwald48]

You have a 12VDC problem. Nothing to do with a GFCI. You'll just have to remove everything from that circuit until you find the shorted device then repair that. I'd probably look at the light fixture first. I've seen pinched wires in those and sometimes the heat can cause a short. Other than that it's just going to be troubleshooting 101.


Everything you mentioned either operates on 12VDC or has 12VDC control systems (like the air conditioner).