David Jackson is correct to the spot! Make sure you clean your machine often so that the overheat switch does not flip! Even if you have been taking out the two filters ( plastic front and long metal one ) there seems to be an accumulation of fuzz way back into the filter case, I never noticed it before till the machine displayed the error and I kneeled to see whether there was something else there. Thank you David!
Athina Kay, September 2009