11/06/2026
The house feels comfortable, but you can still hear the indoor fan. That does not necessarily mean the heat is running. đź”§
On thermostats with a separate FAN setting, ON keeps air circulating even between heating or cooling calls. AUTO normally ties fan operation to those calls, although your equipment and settings can affect when it runs. Swipe for the distinction between FAN AUTO and SYSTEM AUTO, then check your model's instructions before changing unfamiliar controls.
Have questions about your thermostat settings? Call Action Air at 423-719-4422 for help understanding your controls.