You're getting close. Look inside the door and there will be a sticker with the model number. Norcold is the manufacturer (make) and there should be a number on that sticker inside the door.
Also, there was a recall on some Norcold model refrigerators. You have to take the vent off of the back (outside rv) and see if there is a little black box that is plugged into the circuit board.
Visit the Norcold web site to see the instructions on how to determine model and serial numbers. Give them a call with that information and see if you specific refrigerator is on recall and has been fixed. If not, get-r-done immediately.
Wayne MSGT USMC (Ret) & Earlene (CinCHouse)
2008 Winnebago Destination 39W
It is what it is, and then it is what you make of it.