Lock and unlock your Nest thermostat

When you lock your Nest thermostat in Heat mode or Cool mode, you'll set a temperature range after you create a four digit PIN. Anyone can turn the thermostat's ring to change the temperature within the range you've set, but they won't be able to set the temperature outside of your range or change any of your settings.

Note: When you lock your thermostat with the Nest or Home app, the smallest temperature range is 5º F (for example, 70-75º F). There is no minimum temperature range if you set the lock directly from the Nest thermostat. So if you want to set a smaller range or lock the thermostat to a single temperature you'll need to set the lock on the thermostat itself.

When you set your Nest thermostat to Heat•Cool mode, you can choose a temperature range. Your thermostat will heat or cool to stay within this range. The smallest range you can set on your thermostat is 2º F (for example, 68-70º F).

When you set the lock, you'll create a PIN, and then your thermostat will be locked to the range that you've chosen. Unless you enter the PIN and unlock your thermostat, you won't be able to use your thermostat to adjust the temperature or change any settings.

If you need to change your temperature range or settings, you can use the Nest or Home app or unlock your thermostat

1. Tap the Nest thermostat you'd like to lock.
2. Tap the Settings icon in the top right corner.
3. Scroll to the bottom of the menu and tap Lock.
4. Enter a PIN that you can easily remember, and enter it again to confirm.
5. If you're locking your thermostat in Heat mode or Cool mode, you'll need to set a temperature range. Drag the slider to set the minimum and maximum temperatures while locked. Tap Lock at the bottom of the screen when you're done.
6. To confirm your thermostat is locked, tap Settings . You should now find the option "Unlock" instead of "Lock."

You can lock your thermostat to a single temperature or a temperature range.

1. Open the Home app
2. Tap Favorites or Devices .
3. Tap and hold your device's tile  Settings , or More   Settings .
4. Tap Lock enter a 4-digit PIN number tap Next.
5. In the "Temperature adjustment" section:
   • To set a single temperature, tap Set temperature enter the temperature you want your thermostat to maintain tap Next.
   • To set a temperature range, tap Range enter the highest and lowest temperatures you want tap Next.

Follow these steps to unlock your Nest thermostat using its ring. You'll need the PIN that was set when the thermostat was locked. If you don't have the PIN, you can still use the Nest or Home app to unlock the thermostat.

Press the thermostat's ring to wake up your thermostat. The Lock icon at the bottom of the screen shows that the thermostat is locked. Press the thermostat's ring again. Enter the PIN to unlock your thermostat. Turn the ring to change the number, and press the ring to enter it. If the PIN is correct, the Lock icon will disappear. Your thermostat is now unlocked.

1. Open the Google Home app .
2. Tap the name of your Nest thermostat Settings .
3. Tap Unlock confirm that you want to unlock your thermostat.

To change your thermostat's PIN, you'll need to use the Nest app on your phone or tablet.

1. Open the Nest app.
2. Select the Nest thermostat that has the PIN you want to change.
3. Select Settings Unlock.
4. Once your Nest thermostat has been unlocked, you can select Lock in the Nest thermostat settings to lock it again and set a new PIN.

1. Open the Google Home app .
2. Tap the name of your Nest thermostat Settings .
3. Tap Unlock confirm that you want to unlock your thermostat.
4. Once your Nest thermostat has been unlocked, you can lock it again and set a new PIN.