I have a side by side kitchenaid fridge that has had some problems recently. The fridge developed a coolant leak so I had a tech come out and replace the evaporator (covered by home warranty) then I called him back a few days later because I noticed Ice developing right inside the freezer door. He told me that it was because the fridge was not level (it was lower in front than in back). I shut it off, completely defrosted it, leveled it, and the frost is still there. Do I have a bad seal on the door gasket?