I was hoping someone could help weigh in with a technical explanation here.
We have a Whirlpool fridge that is only a few years old, and often notice that food near the back of it (and usually towards the top shelf) is partially frozen. As you get away from the top-center of the fridge this seldom happens, and again, this is an intermittent occurrence (sometimes no food is frozen anywhere in the fridge and everything is fine).
I often go to the fridge and leave the doors open for a few minutes at a time. Usually its to load/unload lots of food to/from it in a short amount of time. My husband says this is the root of the freezing problem we have. His argument is that, since I leave the doors open for a few minutes, the fridge is working harder than it normally should have to in order to keep the food cold, and because of this its over-refrigerating and causing the partial freezing that we're seeing.
However, my understanding (please correct me if I'm wrong) is that there is both a condensor and a thermostat in a modern fridge that should work in unison together: the thermostat tells the condensor when to kick on (such as if the space inside the fridge is too warm) and the condensor is the little unit of magic that cools the air by somehow condensing it.
So, if my understanding is correct, then I would expect the following flow:
- I leave the doors open for a few minutes
- The air inside the fridge gets too warm
- The thermostat tells the condensor to start cooling the air
- At some point in time later (few minutes) I finally close the doors
- At some point in time later (again probably a few minutes) the air is cold again, and the thermostat tells the condensor to stop cooling
So again, if my understanding is all 100% correct, then to me, it sounds like the problem is actually the thermostat, perhaps not telling the condensor to shut off soon enough, and hence allowing it to partially freeze our food at the back of the fridge.
Hence, this problem probably would occur even if you were to very rarely open the fridge doors, and regardless, a correctly-functioning thermostat would take care of this altogether?
Can someone with mechanical/appliance know-how please weigh in here?