Hi all,i have a three year old upright Frost free Candy Fridge/freezer.I opened the fridge door this morning and the back wall was covered in frost and most of the fridges contents were frozen,milk,bread etc and most upsetting of all my tins of beer!(Freezer is fine)Anyone have any idea why it has suddenly done this?It did actually do this once a year or so ago but i can't remember how it resolved itself,i think i just kept scaping the ice off the back wall?The temp setting is only at 2 if that helps?,thanks!,Lee.