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Do you have an error codes on the lights on the pane flashing? Do you see any power on at all if not?
I am adding a link to the Norcold Service Manual which covers this model. Print out a copy so you have it. See the section on error codes and tell me which (if any) you have. That will tell us where to look for the problem. Also check the outside on the rear of the fridge once you open up the outside inspection panel for any sign of yellowish debris around the burner area. That or any ammonia smell would be a sign of cooling unit failure. http://bryantrv.com/docs2/docs/ncoldnnewnseries.pdf
Hopefully, you got this resolved as I didn't hear back from you. You can always return to this posting again if you Bookmark it and we can do a follow up. All part of our service and please take time to enter a rating as that is the only way I get credit for my time spent helping you. Thanks! Be safe........