I am currently replacing my cooling unit on my Norcold 1210 due to a blockage in the cooling unit, from my research the Norcold absorption first must cool the freezer compartment before it will cool the fridge part. the cooling fins should be between 28 and 34 degrees. I am nor sure if you are using electric or gas to cool yours, however you need to try both. in my case our fridge would not cool on gas or electric for more than about 48 to 72 hrs. If we turned it off for 24 to 48 hrs it would work fine but then it would gradually stop working. If you try both ways and it works on one of them it would be a problem with the one that didn't work either the electric or the gas, and not the cooling unit. If it does not work on electric or gas I would suspect the cooling unit. If the unit has been setting for very long take the vent off the top and look down to see if there are any obstructions, this could also cause it not to work. Good Luck.
Larry & Barb: 2010 Phaeton 36QSH, Toad's, 2006 Jeep Rubicon, or 2003 Dodge Dakota 4.7 V-8 4X4