There appears to be a lot of Norcold fans here. Check your serial numbers. Its possible yours is on a recall notice. It looks like the recalled models are probably larger then the ones most people use here, but its wise to check. Here is a clip from the Norcold website:
Norcold Inc. has decided to recall certain 1200, 1201, 1210 and 1211 model gas/electric refrigerators with serial numbers from 315525 to 13088811, non consecutively. The refrigerator's model and serieal number are located inside the fresh food compartment. These refrigerators may have cooling units with a cooling unit serial number between 700000 to 13085759. This is a new recall campaign to include all 1200, 1201, 1210 and 1211 models.
Website link: Norcold Recall