ah, yes. here's the deal.
This is almost certainly a simple case of the power being wired for 240 volts, instead of 120 volts, and the over voltage burned out lots of things. It is an easy mistake to make, especially if you don't pay attention to somebody trying to tell you things.
You see, the plug on your RV, which is wired to a rig that HAS NOTHING IN IT THAT IS 240 volts, is the same plug used in residential construction to hook up things like electric clothes dryers and washing machines and such that are all 240 volts. This leads many folks to the problem you now describe.
This is why I personally highly recommend everyone carry a cheap voltmeter with them if they own an RV. Plug that sucker into the power and verify you only get 120 volts before you plug in the rig. The $10-$20 you spend on the voltmeter will be recovered the very first time you save yourself from getting 240 volts. (And yes, you need to do that at campgrounds, too. You'd be surprised how often the electrician called in to fix something or install things at a campground will make that same mistake.)
Now you are going to have to replace a bunch of things, and since you and your hubby are not competent electricians, I highly recommend you take your RV to a dealer and tell them what has happened. Be prepared to replace a LOT of things.
