My fridge was not getting cold enough. The freezer was a little too warm too. I discovered that the coils were very very dirty. I cleaned them. Now the freezer gets very cold like -20F and if I move the temp setting up just a little tiny bit, (like 1/8 inch), the temp in the freezer will go to +30 F. The fridge temp will swing a lot too.

This sounds like my thermostat, but before I go buying that part I wanted someone else's opinion.

I thought maybe the evap motor was bad, but I do feel cold air coming out of the vent, although it's just a little trickle, not a breeze. I don't know what is normal for this fridge

it's a Kenmore 106.58906802 From 2009