cold control and switches

[thepunk]

I have been reading your blog on refrigerators, and find it interesting.  Learning a lot.  I was wondering though, on a cold control, what if the cold control switch were to fail, let's say in the open position, would that efect the operation of the cooling plate heater.  Or if it failed in the closed position would it cause a problem in the cooling plate heater or just burn out.  Thanks!