As the temperature rises outside, you automatically reach for the thermostat to switch from heating to cooling. Your hand hovers over the second setting option. Should you set the fan to “Auto” or “On?” This question trips you up every season, and you eventually settle on your gut instinct.

This summer, you don’t have to play the guessing game anymore. We’re here to settle the age-old battle of whether your air conditioner fan should be set to the auto or on setting. First, you need to understand what the fan does.

What Does the Fan Do?

Your HVAC system’s fan is responsible for pulling in air to be heated or cooled and sending the air back through the vents in your house. The airflow you feel blasting out of the vent is created by the fan. You can switch the fan back and forth from the on and auto settings.

When the fan is set to the auto setting, the fan will only turn on when your system is cooling the air. When it’s set to the on setting, the fan will constantly run, even if the air conditioning unit is not actively cooling the air.

The Pros and Cons of Setting Your Thermostat to “Auto”

Whether you set your AC’s fan to “auto” or “on” is a personal preference. To help you make this decision wisely, we’ve presented the pros and cons of each setting below. Let’s take a look at the advantages and disadvantages of the auto setting first:



The Pros and Cons of Setting Your Thermostat to “On”

With your AC fan set to “on,” the fan will run every minute of every day. Here are the pros and cons of choosing this option:



Go With the “Smart” Option

If you would like to save even more money, consider installing a smart thermostat. These modern thermostats offer a fan setting called “circulate,” which causes the fan to run during system cycles and for a few minutes every hour. With this setting, your air circulation will be better, and it will not cost you an arm and a leg! Plus, you can change the cooling and heating settings from anywhere when you have a smart thermostat, giving you more control over your energy bills.

Have Questions About Your Thermostat or AC? We Can Help!

At Northern Services, our technicians are committed to helping you feel comfortable in your home all summer long. We’ll keep your HVAC system running efficiently with AC maintenance in Renville County. And if your system starts acting up, we can provide timely air conditioner repairs. Contact us today to schedule a service appointment or ask additional questions!