What are the fan settings available on the Honeywell T6/Pro Series thermostat?

There are three fan settings: On (fan always runs), Auto (fan runs only when heating or cooling is active), and Circ (fan runs randomly about 35% of the time). You can override programmed fan settings at any time by pressing the FAN button.

Have a follow-up question?

AI-powered answers from the official manual. Verify critical info.

Common questions