Picked up my RV
after a month at the dealership for warranty repairs to the radio and the oven.
Radio was fixed (new radio) but Suburban said that it was best to replace the manifold but ended up specifying the wrong "manifold" (which included the thermocouple that was diagnosed as bad by the technician). The dealership took pictures of the manifold that is required and will re-order the part on Monday. I had to pick up the RV since I have a trip coming up. When the part comes in and they are sure it is the right one I will drag the RV back to the dealership.
I was chatting with the parts guy and he confirmed that getting warranty work done on RVs is vastly different from that for cars as they have to work with the specific appliance / product's manufacturer to get authorizaton before they can order and replace the part. If they go ahead and get the part they know is right they could end up not getting paid, so they hav to go through this song and dance, and if the remote technician at the manufacturer is wrong then this nonsense can happen.
Moral of story - for a small part like this it could be better to pay for the darned repair yourself and forego the warranty, depending on the cost of course.