I just had my 1200 replaced with a 1210 fridge at Newmar. All was well there at camp newmar. when we left noticed not cooling at all when MH is in motion.
Tried it on gen and propane. Does work great when parked unlevel or level ground. A/C or propane does not matter. Set to level 5 then put it on diagnostic mode 3, fin temp will get to 23 degrees. Air will get to 35 degrees. set cruise to 60 mph and in less than 40 miles will get to 50 degree air and 48 fin temp. checked it for codes, none there. Freezer has same problem.
Our 1200 was not cooling well on 9, but did cool better on road than this new one does. Called Norcold will not talk to me. Newmar is 932 miles from me [ had to be somewhere] and I don't want to get into the finger pointing game that I have had in the past with vendors and manufacturers. Has anyone had this type of problem before that could help me out. Thanks Ernie