The operational temps of ANY RV refer is
freezer---any temp below 10 degrees
refer--- any temp below 40 degrees
MOST, as long as all operational parameters are met is
freezer 0 degrees MAX tstat
refer 32 degrees max tstat
Now, to complain about the recall is not accurate. The recall has NOTHING to do with operation or cooling. It is a Safety device. nothing else
Ice Cream has ALWAYS been a problem in RV absorbsion refers, not just 1200 models. Ice Cream need sub 0 degree temps to be hard. Very few refers will get sub 0 degrees.
Your problem may be the quality of the install of the cooling unit. They may not have installed the Thermal mastic correctly and they may not have sealed the CU to the box adequately. Doug