The Whirlpool 8183948 Microwave Vent Grille is a structural component designed to cover the airflow openings on the top section of the microwave, ensuring proper ventilation and heat dispersion during operation. It operates by directing air through designated channels, allowing the internal cooling system to maintain stable temperatures and prevent overheating. Installed on the upper ... https://www.hnkparts.com/8183948-whirlpool-grill-vent-microwave