Roy ~ very sad you have had so many problems.
I have had basically NONE save minor little adjustments I easily took care of myself.
Just returned from a week trip to norther Minnesota and EVERYTHING functioned perfect including the furnace and air conditioner. A very heavy thunderstorm moved thru with a frog choker rain and not a hint of a leak.
Plumbing/stove/microwave/TV/lights, etc. all worked as designed.
I'm a happy camper and no regrets paying cash and didn't buy any extended warranty even tho this is my FIRST camper.
Sad to read of your misfortune.
2012 Fun Finder XT 276 Toy Hauler & Harley Davidson Ultra Classic with Condor wheel chock
2014 Dodge Ram 2500 AT 4X4 Crew Cab 6.4 L Hemi, 373 gears, tow package, Rambox option, Revolver X2 tonneau cover, Equal-I-zer anti-sway hitch.