Terry,
Mine is Model # TB575SS. They also offered a 3 year warranty which I bought that covers everything. Instead of sending it back to the factory and going through that time and mess for them to determine if they will fix it, I just take it back to Lowes and they will give me a new one for it and then they deal with the factory. I don't even need the receipt or anything as they put it in their computer.
Ron
