Hi, I have a Hotpoint integrated fridge freezer (frost Free) HM315FF. Basically the fridge keeps frosting up and freezing the food. The hotpoint engineer came around and suggested replacing the control board. This was done and made no difference. He now says the unit cannot fixed and needs to be replaced. The unit is one month over 5 years old and in excellent condition so I would like to try something else first. Does anyone have any ideas to help. Thx in advance. Steve