health | February 23, 2026

Should the Honeywell thermostat be on auto?

When your thermostat is set to “auto,” your fan will only run while your HVAC’s heating or cooling cycles are running. Once the preset desired temperature is hit, the cooling cycle stops and so does your fan. When you set your thermostat to “on,” the fan will continually run no matter what.Click to see full answer. Also question is, should thermostat be on auto or on?“Auto” means that the fan automatically works ONLY when the air is being heated or cooled. So once your home reaches the temperature set on the thermostat, the fan stops. “On” means the fan is on 24/7, even when the air isn’t being heated or cooled.Also Know, how does an auto changeover thermostat work? Sensi thermostat has a feature called Auto Mode, which allows the thermostat to switch from Heat to Cool, or Cool to Heat automatically. Select “Auto” to allow the thermostat to switch between heating and cooling based on room temperature and the selected heating and cooling set points. Also question is, how do I set my Honeywell thermostat to auto? Press the “Fan” button to set the fan on Auto or On. Press the “System” button to put the thermostat in Heat, Cool or Off mode. To change the setting, push the button again. The screen will display the setting you’ve selected.What’s the difference between auto and circulate on thermostat? “Auto” setting When cooling, the fan will only run while your air conditioner is running. Some thermostats now offer a “Circulate” setting that will turn your fan on for a set period of time to help in circulating the air.