I think I have a problem with my Harman p68 getting too hot sometimes. Every now and then I just smell heat and when I go near the stove it is really hot the sides are so hot you can feel the heat. I have a piece of wood furniture about 2 feet away and the side of it is almost so hot you can't touch it. Even the pipe is very hot. The fans seem to be working so I was wondering if there is a high/low limit switch or something causing this to happen. 95% of the time it runs great it's just scares me when it does this. Any ideas anyone? Thanks.