Is It Better To Run Ac On Auto Or Fan. When it is set on auto the fan turns on ONLY when your system is running. Your air conditioner has a blower motor inside that forces the air out and through the ductwork to deliver cool air to all of the rooms in your home.

When your fan is on AUTO moisture is able to drip from the cold cooling coils and drain outside. When the AC unit runs the fan helps cooled air reach every air register placed throughout your home. The fan setting controls when this blower is on.
Customizing the settings on your thermostat can lead to a more efficient system and increased comfort.
When your fan is on AUTO moisture is able to drip from the cold cooling coils and drain outside. But how do you know which setting is best for you. On a windy day your body feels a lot cooler as compared to a non-windy day of the SAME temperature. Pros to Setting Fan on Auto.

