Vent piping was partly plugged with lint causing the heating element to short which caused it to overheat and burn up the thermal fuse. while I had the dryer apart I replaced other worn parts, drum belt, drum felt seals, and the blower wheel...I called my local appliance stores and got price quotes for these same parts they were about 40% - 50% higher in price and they didn't have any of the parts in stock 3 day delivery. So I went online found Appliance Parts placed a order paid extra for overnight shipping and still saved over $40.00. Thanks