The drip tray, or drain pan, is located beneath the evaporator coil in your indoor unit to collect the moisture removed from the air during the cooling process. This water then flows into the condensate drain line to be safely exhausted. If the tray becomes clogged with dust or biological growth, it can lead to water leaks or unpleasant odors. We recommend checking the tray as part of your preventive maintenance routine. For attic-mounted concealed duct units, an auxiliary emergency pan is often installed as a backup to prevent ceiling damage. Keeping this component clean is vital for maintaining high indoor air quality and system hygiene.