How to control your fan with the Nest Thermostat

If your system has a separate fan wire, you’ll be able to turn your fan on without turning on your heating or cooling system. You can also set a schedule to have your fan turn on regularly to circulate the air in your home.

Your Google Nest Thermostat offers a simple way to turn the fan on whenever you want. For example, you can set the fan to run all night and automatically turn off in the morning. Or you could schedule it to run for a few hours in the afternoon when the kids get home from school.

You don’t need to turn on your heater or your air conditioner to use your fan, but you won’t be able to turn your fan on while your thermostat is Off.

Note: If you don’t have a separate fan wire installed, you won’t see the fan option, and you won't be able to use any of the fan settings.

You can control your fan on your thermostat or with the Nest app:

Fan control with your thermostat

How to turn your fan on right away

  1. Press your thermostat ring to open the Quick View menu.
  2. Select the Fan Nest thermostat fan control icon icon.
  3. Turn the ring to select how long you’d like your fan to run. If you have a multi-speed fan, you’ll be able to select your fan speed.

You’ll see a spinning fan icon on your thermostat’s screen while it’s running.

Your fan will turn off automatically after the time you’ve selected, or you can turn it off early by selecting Stop now from the fan menu.


How to set a daily fan schedule

  1. Press your thermostat ring to open the Quick View menu.
  2. Select Settings Nest settings icon.
  3. Select Fan Schedule.
  4. Choose how long you’d like your fan to run per hour, or set it to always run.
  5. Select what hours of the day you’d like your fan to run. If you have a multi-speed fan, you can select a fan speed for your fan schedule.
  6. Select Done to set your schedule.

Your fan will turn on automatically each day for the time and duration you’ve selected. You can always edit or disable your schedule at any time from the fan menu.


How to set your system’s fan speed

This option is only available on systems with multi-speed fans.

Learn more about the Nest Thermostat and multi-speed fans >

  1. Press your thermostat ring to open the Quick View menu.
  2. Select the Fan Nest thermostat fan control icon icon.
  3. Choose System fan speed.
  4. Select the fan speed you’d like to use when your system is heating or cooling your home. You can choose LowMediumHigh or Auto, depending on your system’s wiring.
  5. Choose Done to set your system’s fan speed.

If you choose low, medium, or high, your fan will always run at that speed when heating or cooling your home. If you choose Auto, your Nest Thermostat will automatically choose how fast to run your fan when heating or cooling your home.

You’ll still be able to choose a different speed for your schedule and each time you choose run your fan. For example, you can set your fan to high when heating or cooling and and schedule your fan to run at low speed in the morning to circulate the air in your home.

Fan control with the Nest app

Fan control with the Nest app>

How to turn your fan on right away

  1. Tap the thermostat you’d like to control from the home screen.
  2. Tap the Fan Nest thermostat fan control icon icon.
  3. Select how long you’d like your fan to run. If you have a multi-speed fan, you’ll be able to select your fan speed.
  4. Tap Start to run your fan.

Your fan will turn off automatically after the time you’ve selected, or you can turn it off early by selecting Stop from the fan menu.

How to set a daily fan schedule

  1. Tap the thermostat you’d like to control from the home screen.
  2. Tap the Settings Nest settings icon icon.
  3. Select Fan Schedule.
  4. In Every Day, tap the slider to turn your fan schedule on or off.
  5. Set how long you’d like to run your fan per hour. You can choose 1530 or 45 minutes of run time, or select 60 minutes to run your fan for the whole hour.
  6. Choose what time you want your fan to start running, and when you’d like your fan to stop running this schedule. If you have a multi-speed fan, you can select a fan speed for your fan schedule.

Your fan will turn on automatically each day for the time and duration you’ve selected. You can always edit or disable your schedule at any time from the fan menu.

How to set your system’s fan speed

This option is only available on systems with multi-speed fans.

Learn more about the Nest Thermostat and multi-speed fans >

  1. Tap the thermostat you’d like to control from the home screen.
  2. Tap the Settings Nest settings icon icon.
  3. Select Fan.
  4. In HVAC fan speed, select the fan speed you’d like to use when your system is heating or cooling your home. You can choose LowMediumHigh or Auto, depending on your system’s wiring.

If you choose low, medium or high, your fan will always run at that speed when heating or cooling your home. If you choose Auto, your Nest Thermostat will automatically choose how fast to run your fan when heating or cooling your home.

You’ll still be able to choose a different speed for your schedule and each time you run your fan. For example, you can set your fan to high when heating or cooling and use a schedule to set your fan to low every morning to circulate air in your home.

Was this helpful?
How can we improve it?