how can i fix my Amana/Maytag frig?

I purchased in 2005 an Amana Top Freezer Model #ltf2112arw refrigerator and had it installed. Since then it has constantly been too cold or freezing food in the food compartment. Despite adjusting the temp. over the last 4 years, it still does this. I wonder if at installation the foam inserts inside the air flow units (located at the top and behind the temp. control) are supposed to be there? Please advise as it's getting more than irksome to have fresh food frozen!!