Help. I am not fridge expert but the fridge i used for my keg set up started freezing on me in the buttom. Being an old fridge it might be normal but is there anything i can do to make it better? The weird thing is all the bottles in the fridge (such as beer bottles or coke cans ) aren't freezing but half of the two kegs are both frozen making the beer not flow thru the tap. I got the fridge for free from a friend.. any help will be appreiciated. Just wondering if a thermostat in the fridge might make it work better? If so how do they work and about how much do they cost?