I bought a new vacuum, used it a few times, and it quit. I took it to the dealer's to see what the problem was. The first thing he did was check the bag. It was full and packed down the tube all the way to the rollers!! I was so not used to a vacuum working that well that I didn't even think about it being full so soon. I was really embarrassed :oops: , but now I check it every time I use it and no more problems :D