Product review (5 stars): Does the trick
I have a Kenmore fridge in my vacation house, which i keep at 40 degrees when i'm not there in the winter.  On the occasional weekend visit, I was finding my ice cream half melted in the freezer, and stuff in the fridge like butter frozen solid.  After some research I realized I was not alone with this cold weather dilema and found this gizmo for my Kenmore (aka Frigidaire).  And it works like a charm.  Install instructions a vague at best and you need to spend some time staring at the picture, but once you you are oriented correctly it's easy.