You may have a problem with a thermal switch for your fans to cool the coils in back of refer. Your freezer will be ok but box temp will be as you say.
Check the next two links.
Norcold
Check pic #1 it will show you what to do.
Added fans
You can pick up a 12V fan and place it in the vent at base of your refer outside the fan will cool down your coils until you can have it looked at some where and still enjoy your vacation.
You have 12V on a connector feeding the refer in your vent acess panel you can also use a 110v fan and place at bottom of vent that can plug into outlet for ice maker but you will have to run your GENERATOR between stops at CG's.