There was indeed a problem with the vacuum sealing strip - a small bump on the surface which prevented a tight seal. I called customer service. The representative suggested that I use a credit card to try to move the bump, which would indicate that food had somehow lodged itself under the sealer screen. The credit card procedure indicated that there was a solid mass which couldn't be moved. The sealer element is not replaceable so......... we purchased another vacuum sealer which works like a charm. What is disturbing, is that I took meticulous care of this appliance, followed all of the instructions TO THE LETTER, and still had this problem. Oh well - since I'm in the process of making dehydrated meals for our trip to the Grand Canyon, vacuum sealing is essential. Hopefully, we'll have this unit longer than 2 years. BTW, we bought another FoodSaver.
Edelweiss