I haven't had problems with mine. Is it new and purchased from them? I know a year or so ago they did have problems, I'm not sure if it was to hot or to cool, but they fixed the issue as far as I know. The newer ones have a black plate on the underside and the older ones have silver.
Just a thought. I'm sure they will send you a new one!
Just a thought. I'm sure they will send you a new one!