Fridge too cold, Freezer fine

I have the Whirlpool, GC1SHAXMB00, recently it has started getting really cold in fridge. All the adjustments I did to the temperature had no effect. Its cold to the point that any liquids in the fridge will freeze a little. I talked to someone that had this same issue and he said the repairman replaced the contol board on his. I looked up the control board for my fridge (8206668). My question is where is this board located? Is it behind the controls on the freezer door (if so how do you remove the panel) if not where is it?

Thanks for any your help!