To maintain a dryer, it is important to remove lint from the filter after every use, clear its venting tube at least once per year and regularly remove debris from its outdoor vent cap. Overgrown shrubbery near the cap should also be cut back.
Once a year, it is also important to disassemble the dryer and vacuum its interior. It is a good idea to replace any white vinyl tubing with aluminum tubing. As of 2015, white vinyl tubing does not meet U.S. federal safety standards. Regular dryer maintenance significantly reduces the chances of home fires, which occur in the thousands every year.