Lengthen the life of your clothes dryer with regular cleaning. Clean the lint filter after every load, which improves air circulation and safety. Check the lint trap opening to ensure it’s clean. Use a vacuum to remove any lint that’s fallen inside the opening. 

If you use dryer sheets, check the lint filter for residue buildup. Remove any residue with hot water and a nylon brush or toothbrush. Over time, dyer sheets can leave a film on the filter, which can affect the performance of the motor. 

Source: Energy.gov