Fuse keeps blowing when on shore power
I've got a 1994 Dutchmen Classic 2200 5th wheel. I'm hooked up to shore power, and didn't have anything drawing heavy power on. Just lights & a laptop and dehumidifier plugged into a couple different outlets.
I'll start out by saying that a few days ago the porch light bulb needed to be replaced. No problem, but I did notice the plastic housing above the light fixture showed signs of melting. I've only had the 5th wheel for a short while and didn't notice if it was that way before or not, but when I replaced the bulb it worked fine & didn't show any signs of overheating when I checked it a few times.
Fast forward to a few days later when I lost the light over the sink, the fan/light over the stove, & the light over the sofa, in addition to the porch light.
No circuit breakers tripped. Bulbs look ok.I checked the battery for signs of corrosion and saw none, and the connections look good. Not being electrically savvy, I thought it may be a fuse, so identified which fuse should run those lights if NOT on shore power. I replaced the fuse, noting that it gave a teeny tiny spark when inserting it. When I'd replace the fuse & try just one light, it would glow dimly for a split second & blow the fuse. Thought it might be a bad fuse, so did it again with the same result.
Any electrically savvy folks out there that might be able to assist?
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