If the dryer smells sizzling or is using extended to dry then it is actually time to have your vent inspected and cleaned. Dryer vents need to be cleaned at least on a yearly basis. Getting the vent cleaned may save your life! of property fires are caused by clothes https://www.google.com/maps/d/edit?mid=1Y6FoBp66BALv8qFQFh6QdMpJqLXOkQM&usp=sharing