I recently bought a Seal 160M dry mount press on that auction site. The press is relatively new but the darn thing overheats. I've replace the thermostat with a new one but it hasn't fixed the problem. The amber heating indicator light goes out like it should but the the temperature will climb right up past the thermostat setting and keep on going until I turn the power off. Anyone else experience this problem? Any ideas on how to fix it?