My SHARP CAROUSEL II microwave oven quit working after cooking a batch of microwave popcorn. I can enter cook time, and the timer will count down. The light comes on when I press start, but the microwave does not start and the carousel does not turn. There is a slight, popping noise when I press start but nothing happens after that. Is there anything I can do to fix this problem such as reset switch, or what can be done to fix the problem?