Nest thermostat Off mode

• Off mode disables all regular heating schedules. Your thermostat won’t turn on heating  and won’t maintain your Eco Temperatures.
• Off mode doesn’t turn off the power to your Nest thermostat or your system.
• Your thermostat will still use Safety Temperatures to protect your home during extreme cold temperatures. This way, your thermostat can help prevent possible damage from frozen water pipes and still work to save energy. 
• Your thermostat will continue to record your Energy History. You’ll see an Off icon in the app when you
  check your history.
• Your thermostat will stay connected to the internet. So you'll still be able to control it with the app, and it can automatically download software updates.
• To completely prevent your Nest thermostat from activating your home’s system, even if temperatures reach extreme levels, you'll also need to turn off Safety Temperatures, your domestic hot water schedule, and bacteria prevention. Go to the last section of this article for instructions.

• Off and Eco modes can both help you save energy. You’ll probably save more energy with Off mode, but it will take longer to return your home to a comfortable temperature. 
• When your thermostat is set to Eco, it will run heating to try to maintain Eco Temperatures.
• When your thermostat is set to Off, it will only turn on heating in extreme conditions to maintain Safety Temperatures.  

Learn about Nest thermostat temperature modes

 With the thermostat

1. Press your thermostat’s display to view the Quick View menu.
2. Turn the ring to Thermostat , then press to select.
3. Turn the ring to highlight Off, then press to select.

Home app

1.  Open the Google Home app 
2. Tap Favourites or Devices . select your thermostat.
3. Tap Temperature mode .
4. Select Off.

Nest app

1. On the home screen, select your thermostat.
2. Choose Mode . (You may see “Heat” below this icon.)
3. Select Off.

Your thermostat will now only tell your system to heat your home when the temperature reaches your Safety Temperatures.

Even if your Nest thermostat is set to Off it will follow your domestic hot water heating schedule. Follow the link below to learn how to turn off your domestic hot water heating.

Note: If your domestic hot water hasn’t been heated in the last 48 hours because of a gap in your schedule or if you’ve turned your hot water schedule off, your Nest thermostat will automatically heat your hot water tank to help prevent bacterial growth if Bacteria Prevention is enabled.

Change domestic hot water settings

To completely prevent your thermostat from turning on heating, you need to disable Safety Temperatures and Bacteria Prevention.

Important: Your Nest thermostat uses the Safety Temperature to help prevent your pipes from freezing if your home starts to get too cold. When the Safety Temperature is disabled, your thermostat can’t help prevent your home from reaching dangerously low temperatures.

You can set your Safety Temperature to off from the Equipment menu on your thermostat or with the app. For detailed instruction, see the article linked below.

Nest thermostat Safety Temperatures

Important: Your Nest thermostat uses Bacteria Prevention to help prevent the growth of certain bacteria, such as Legionella.

You can disable Bacteria Prevention from the Equipment menu on your thermostat or with the app. For detailed instructions, follow the link below.

Nest thermostat bacteria prevention