I was drying clothes and a shirt got stuck in the door and jammed the dryer and it stopped working. I unpluged it, let it sit and plugged it back in. When I pushed the start button, it just made a buzzing sound. I tried again the next morning and it still just buzzed. We went on vacation the next day and when I returned 5 days later, I tried it one last time before buying a new one and it worked fine. I've used it several times and nothing seems wrong. Any ideas on this one? Also, is this just an early sign that its time to buy a new dryer?

THanks.