Model Number: 106.53762202
Brand: Sears Kenmore
Age: 6-10 years

This fridge has always been very cold. I went through and checked all possible reasons years ago and everything was working properly. I ended up taping off 2/3 of the cold air flow. That kept the fridge around 38F.
It has started to freeze. I am not able to shut it off or change the settings. I feel the buttons depressing but nothing happens.
Is there a way to know if the board is bad?