What kind of things are happening? A motor home consists of basically 3 different types of things:
1: Truck, Hayes or Chilton's makes manuals for all sorts of vehicles,, One of them most likely WILL cover the truck part.
BODY: walls, floors ceiling roof, not much that needs a manual there, We are talking walls, Floors Ceiling and roof after all.. Only "Special" thing is the roof.. Think Kitchen floor and you are darn close.
Stuff: TV, Radio, Microwave, Plumbing, Lights, Slide outes, Doors, Mirrors, Vents, Fans, Furnace, Water heater, Fridge.
All these are 3rd party items and you can download the needed manuals from the manufacturer's web site save for the plumbing.. And any good book on plumbing will apply to that.
Home is where I park it!