We have a small under the counter fridge and in the last 2 weeks it keeps freezing all the food and the back of the fridge is covered in a layer of ice. This happens whether the fridge is full or there's hardly any food in the fridge. We usually have the fridge on 3 but have tried turning it down to 1 to 'defrost' then back up again but it just freezes all over again.
Do I need to get a new fridge? Help!