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Locking and Unlocking Nest Thermostat: Here’s What To Do

Fact checked by Teddy B.Miller

locking and unlocking nest thermostat

The new nest thermostat can be intimidating for people unfamiliar with the technology. Fortunately, I am here to help you navigate the knobs and turns for locking and unlocking Nest Thermostat.

For convenience, the Nest thermostat also has an app so that you can lock it anywhere with just a few taps on your phone. But if you prefer the traditional way, you can lock and unlock the device without app. 

Methods for Locking and Unlocking the Nest Thermostat

The Nest Thermostat lock prevents anyone from changing the temperature. However, the Thermostat can adjust the temperature within the set temperature range.

Here are several ways to lock it.

Method #1: Through the device


The device is circular and has a silver ring at the outermost part. Meanwhile, the black circle with the screen is in the inner part.

To Lock


  • Step 1: Press the ring key

Slightly press the touch bar at the upper right side of the Thermostat to bring up the menu.

  • Step 2: Choose the settings

Once you press the touch bar, you will see the menu interface. Turn the ring to select the settings icon.

It resembles a gear, and most people call it the cog, so it is pretty easy to find.

  • Step 3: Go to the ‘lock’

After you choose settings, you will see another light blue circle on the screen with the text which indicates its contents.

Turn the ring clockwise to navigate the settings until you land on the ‘lock’ page. Press the touch bar to select.

  • Step 4: Providing the Pin

After selecting the ‘lock,’ you will be prompted to set a 4-digit nest pin code as a security feature. You will need it if you want to unlock the device later on.

You can set the temperature range by inputting your lowest temperature setting and highest. Select ‘done’ after to lock Nest Thermostat.

To Unlock


  • Step 1: Press the touch bar

When locked, you can only scroll to change the temperature within the set range. Press the touch bar if you want to unlock.

  • Step 2: Provide the Pin

You will be prompted to provide a pin. Remember the 4 digit pin you have set to lock the device? Enter it to disable the lock on Thermostat. 

Method #2: Using the App on Your Phone


You can install the app through your android or iOS smartphone, so you don’t have to walk to the device to adjust the lock thermostat temperature.

The icon of the Nest app resembles a house with a blue background.

To Lock


  • Step 1: Select the device

When you open the app, you will see the devices installed in your home. And it will appear as ‘downstairs’ or ‘upstairs.’ 

Select the device you want to lock.

  • Step 2: Tap the ‘settings’ icon

Like the device, you must go to the settings page to access the control.

You will see the different features, such as auto-schedule, Time-to-temp, Early on, and the like. Scroll down and tap the ‘Lock’ under the ‘Wi-Fi connection.’

  •  Step 3: Set the Lock Pin

The app and the device follow a similar procedure. Provide the 4-digit pin, and the app will ask you to confirm it.

Just enter the pin once more, and you will be redirected to set the temperature range.

  • Step 4: Set the temperature range and lock

The temperature range appears as an elongated bar with two large white circles. The circles indicate the lowest and highest temperatures.

After setting the range, tap the Lock button located at the lowermost part of the page, and the device is now locked. 

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To Unlock


  • Step 1: Select the device

When you open the app, you will see the list of devices and select the Thermostat you want to unlock.

  • Step 2: Tap the ‘settings’ icon

You will see the available features and scroll down a bit. You will notice that the text has changed from ‘lock to ‘unlock.’’

  • Step 3: Tap the unlock

Unfortunately, the Nest Thermostat does not have a ‘forgot pin’ feature. But you can unlock the device even without pin.

Just tap the unlock, then the app will ask you to confirm it and tap the unlock tab again.

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The lock for Thermostat offers a wide variety of locking and unlocking options. Ensure you follow the correct sequence from the ‘settings’ to the 4-digit pin to lock the device.

On the other hand, you can control the lock and temperature from app to device. Unlike in the Thermostat, the app will not require you to enter the 4-digit pin when opening.

I have listed everything you need to know about locking and unlocking Nest Thermostat. Feel free to share the article if you find it helpful.

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