Re: Refrigerator not Cooling ??? Reply #100 – September 05, 2011, 01:38:30 pm I think mine is built in the same way, i.e. the space between the outside coach wall and the heat exchanger is filled with "blue" insulation board. I agree, the exchanger should be hot (it is moving heat from the refrigerator to the outside atmosphere), but is there a danger in cooling it too much? In looking at the temps from the freezer/refrigerator before and after propping open the cover, it is hard to see any effect, positive or negative. Quote Selected