has your freezer door started opening when you shut your fridge?
- you're just gonna have to be sure and check the freezer each time you shut the fridge.
- try not to slam the fridge
- check the amount of weight in the fridge door; the more this is, the more momentum will be generated. also, (i think) the further the weight is from the hinge, the more momentum will be generated; put heavy stuff in the frige door shelves nearer to the hinge.