Can we all stay on-topic & be helpful?
Yes, it does sound electrical & it could be faulty campground wiring, storm-related, etc. If you do not already have something like this, I recommend investing in a Progressive Industries Portable Electrical Management System immediately. You can buy it on Amazon & install it yourself without taking your 5th wheel to the dealer. It will give you an idea of what is happing electrically at your campsite & keep your other (working) appliances safe. Your 5th wheel probably comes with 50 amp service, so you will likely need the 50 amp version. However, check with the campground manager or another experienced camper to know the amperage you are plugged into.
ASAP you need to find-out exactly when your warranties expire - not only on your entire camper, but also on the individual devices/appliances that are not working. In some cases, you might have a 2 year warranty on a few things. You may also have extended coverage on the camper or a 3rd party warranty, so you will need to sort through the paperwork.
If you are not covered by warranty, then it is very important that you find another trustworthy full-time camper, etc. who is willing to look-over your trailer & assess the actual damage. Otherwise the dealer may push you into replacing multiple expensive appliances vs. repairing them. If there are other full-timers at your campground, many actually love having projects to keep them busy & they also love being helpful. (My dad is retired & he is more busy now helping others-which he enjoys...)
In the meantime, don't stay in your camper if it is really, really hot. Be safe. Go to friends' campers, the store, library, etc. to stay cool & return to camper when it has cooled-off. Let us know how it goes...
2011 RAM 2500 ST Crew Cab 5.7 Hemi
2011 Primetime 3150BHD Touring Edition
Days camped in 2016-36
Days camped in 2015-37
; Days camped in 2014-31