This unit is less than two years old and this is the SECOND time i have lost food.  The freezer just stops working. It is like it gets stuck in defrost mode or something.  Also if you open the door to get something out and the door closes behind you the door will not open again for a little while.  the suction holding the door closed is so strong you can move the entire refrigerator out pulling on the door trying to get it open.