My three year old Belling BEL-CJ/SS25 Microwave oven and grill has recently developed a problem. Whenever I close the door when I'm not using it, and it's plugged into the wall socket, the turntable starts rotating. It doesn't make any cooking sounds and the interior light doesn't come on, but you can clearly see the turntable rotating inside, and after a while a very slight smell of hot (Not burning, just hot) rubber can be detected coming from the top right vent. When I open the door the light comes on as normal and the turntable stops rotating. For three years I have used my microwave virtually every day, and I first noticed this problem about a week ago. Does anyone know if this makes the oven unsafe. Is it still safe to use, or should I buy a new one. The guarantee has run out so I wont get it repaired.