Definitely sounds a lot like something overheated and the thermal safety kicked in. If it is the thermal fuse, it shouldn't reset itself automatically. So I'm ruling that out. Maybe it's the control board nearing its end? I may be totally off-bat there though, so let's hope that's not the case because it's no easy/cheap fix. Another possibility is scale built up. If your area has hard water and your machine went by a long while without descaling, a layer of scale may have formed inside. When that happens, the thermoblock needs to heat up much hotter to produce steam. That would cause extreme heat in the machine as well (like when your PC is overheated it will shut of by itself. ) Lastly, you may also consider posting over in the Coffeesnob forum as they seem to have more Sunbeam users there.
