What should I do if the CHECK VENT indicator is blinking?

The CHECK VENT indicator signals a serious reduction in exhaust airflow, which means your home's exhaust system has a serious restriction. This light does not indicate a problem with the dryer itself and is not covered by the dryer's warranty. Check for a crushed vent duct, ductwork that is too long with too many turns, partial blockage from lint buildup, or a plugged outside vent hood, and have your exhaust system cleaned and inspected by a professional. (Page 29)