https://www.fleetwoodrv.com/wp-conte...arrow-2000.pdf
Sadly, no wiring info provided - you’re probably going to have to figure it out on your own, at least for the coach or house wiring.
But in addition - you are going to need a chassis wiring diagram as well (FWIW - you don’t typically see schematics for these vehicles unless it is for the chassis - and even then it’s more wiring diagram than schematic - vehicle wiring diagrams are hard enough to understand, a schematic would be ridiculously harder).
Thermal overload and relay that powers “what” are you seeking?