Cleaning the Cool Air Inlet Grille
Vacuum the cool air inlet grille 3 - 4 times a year to make sure there is no buildup of lint or dirt that can cause improper airflow. Always unplug the appliance before cleaning or vacuuming it.
Note
Warm air is expelled through the ventilation grille.
The installation location should have adequate ventilation to avoid pulling in the air from nearby fuel-burning appliances.