Thousands of potentials (Well perhaps only dozens) but most are covered under warranty.
The big thing is a good Pre-Delivery Tour of the rig, I got the 30 minute special when I got my rig and, well,, Thanks to doing a lot of research that was enough for me (though I've had to find a few things I know the man showed me) But by the time I got there I'd already read the manual, I'd already read the user guides (generic) and of course spent years (I do mean years) on the internet chatting with others,, Plus I've experience with trailers.
Issues I've found that you should check. and/or will need to fix.
The big one is this. I've found RVers tend to have a few screws loose.. No, not that kind, the kind you tighten down with a screwdriver, A #2 Square bit or a phillips (also #2) will fit most of 'em the square fits best, There is a special bit which is a combination of the two (it's blue you get it at Lowes or Home Depot) and it fits best of all.. These screws include a number of trim screws, window treatment screws and about 1/2 of the screws in my master electrical breaker panel.. If for example an Air Conditioner works one time and not the next.. Suspect loose screws, Each circuit has 3, white, bare or green and black wires. MAKE SURE YOU ARE UNPLUGED AND GENERATOR OFF WHEN TIGHTENING.
2: read the manual for the generator, There is a reason they say to run under load for 1/2 hour a month.
3; Pay very close attention when the delivery guide shows you the location of fuses, breakers, low point drains, the booster switch for the antenna and other things like that. TAKE NOTES in fact, Or better yet wear a pocket recorder and take notes.. You never know when you are going to need this informaion.
Locate (or have him show you) the converter (or inverter if so equipped) note make and model and post to this thread for a review of it.
If you live, as I do, in the great white north (Michigan in my case) consider having it winterized up front.
Also pay attention when he shows you how to drain the water heater... Even before I'd completed delivery of my rig I was walking through the shop (They were installing base plates on my car) and with my service rep and an insurance rep (not mine) who was there to look at a water heater that was not drained the fall before.. OUCH!) Insurance might not cover that kind of thing since it is owner neglect.
READ READ READ (manuals and guide books)
The final comment.. Tire pressure.. There are two numbers that are all but guaranteed to be the WRONG pressure for your tires (Actually 3)
1: The pressure stamped in the sidewall.. If you read close it says something like
Maximum load 7,500 pounds at maximum pressure of 100 PSI
Of course if you are only putting 6,500 pounds on that tire, You don't need 100 PSI
The second wrong pressure is on a sticker somewhere inside the rig (have the tour guide show you that sticker, and the sticker with the color codes for the paint job) That's dry weight, no water, half a tank of gas 150 pound driver, no passengers, no cloths, food, dogs, cats, chairs or such.
The third wrong pressure is the pressure it's got when delivered (may be one of the above)
The right pressure is found by weighing the rig, each wheel seperate, and going to the tire maker's web site and looking it up.
or you can call someone like Aweigh-we-go (The RV safety Institute IIRC) and they will not only weigh it for a reasonable fee (less than 50 bucks) but provide you with a copy of the chart from the tire maker's web page
This is the ONLY way to do it right, And it matters not if it's a car, truck, trailer or motor home that is the right way.
I like to run a few pounds high myself to allow for "Molecular Migration" as one plastic wrap company used to call it in their ads (All tires leak air, ALL of 'em, no exceptions, some do it fast(We call those flats) and some slow, but they all leak)
if you do not have one, consider a Tire Pressure Monitoring System, Smart tire is the best but ... Pressure Pro is much easier to install and I rank it #2 (You install PP, ST requires professional installation)
CW sells Smart Tire. I do not sell PP but can give you the E-dress of a friend who does or .. Well, Most any RV magazine has ads or you can join
www.rvforum.net and message PP direct (they belong to the forum)