We were told it was the belt needing to be replaced....it was not a 'burn' on our clothes although that is what it looked like. If you ran a rag or towel between the part that does not go around and the part that does...that is where the stain was coming from. Clothes were getting in there during the cycle and getting the 'burn type' mark on it, which I never figured out how to get out. We were told considering the age of the unit it was not worth the repair for a belt...apparently they are not easy to work on. We replaced the dryer with one we got off craigslist for pretty cheap.