Step-by-step Instructions

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How to install your Nest thermostat 

In most homes, installing a Google Nest thermostat is an easy DIY project that takes about 20-30 

min. The Nest app’s step-by-step instructions make it easy to install and wire your thermostat, so 

use it as your main guide. Refer to this article if you need extra help. 

To get started using your Nest thermostat, you’ll need to complete all the steps below 

Before you open the box 

Make sure you’ve checked that your system will work with the Nest thermostat you’ve purchased. 

Install your thermostat on the wall 

The Nest app will guide you through thermostat installation, but here are some more detailed 

instructions to walk you through everything you need to do to install your Nest thermostat on the 

wall. 



Begin installation 

with the app 

The Nest app’s step-by-step instructions make it easy to install and wire your 

thermostat, so use it as your main guide Refer to this article if you need extra help 

. It’s essential to have the latest version of the app to complete setup. 

Download it from the Apple App Store or from Google Play. If you don’t 

already have an account, the app wil ask you to create one. 

2. Tap Settings on the app home screen. 

3. Scroll down and select Add product to start the setup instructions. 

4. To tell the app which thermostat you’re installing, scan the QR code on the 

back of the display Or choose “continue without scanning” and select your 

thermostat model. 

5. The app will show you how to install your thermostat. It will ask you some 

questions about your thermostat wires. Answer them as accurately as 

possible. 

You’ll get a custom wiring diagram for your system after you’ve installed 

the thermostat base 

Summary of content (10 pages)

PAGE 1
How to install your Nest thermostat In most homes, installing a Google Nest thermostat is an easy DIY project that takes about 20-30 min. The Nest app’s step-by-step instructions make it easy to install and wire your thermostat, so use it as your main guide. Refer to this article if you need extra help. To get started using your Nest thermostat, you’ll need to complete all the steps below Before you open the box Make sure you’ve checked that your system will work with the Nest thermostat you’ve purchased.
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1. Switch off power to your system (You may have already completed this step.) t’s important to protect your thermostat and your system. Turn off the power to our system and thermostat before exposing any wiring. Your HVAC system can have multiple breakers so make sure to turn them all off before moving on. Check that the power to your system is off by changing the temperature on your thermostat by at least 5 degrees f it’s winter, turn up the temperature to turn on heating.
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mportant: This illustration is only an example. Each system’s wiring is different. You must get your own custom wiring diagram with our Compatibility Checker. ncompatible wiring igh voltage wires f your thermostat is labeled 120V or 240V or has thick wires with wire nuts, your system is high voltage and isn’t compatible with the Nest thermostat. Do not connect the Nest thermostat to high-voltage wires.
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Learn more about stranded wires 4. Remove jumper wires and save them Jumper wires are short wires between two connectors. The Nest thermostat doesn’t need them. Keep your current thermostat, the photo of your wiring, and any jumper wires your current thermostat uses in a safe place. hat way if you ever decide to move and you want to take your Nest thermostat with you, you’ll have everything you need to reinstall your current thermostat. 5.
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6. Disconnect the wires and remove the base mportant It’s important that the power to your system is off to avoid blowing a fuse in your equipment If you blow a fuse, your Nest thermostat won’t turn on, or may display a power error after installation. After removing the base, we recommend gently wrapping the wires around a pen or pencil to ensure they don’t fall back into the hole in the wall. Now is a good time to patch and paint over any holes in your wall.
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7. Mark where screws will go se the bubble level to make sure the Nest thermostat is level 8.
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f you’re going to use the optional trim plate, place it on the wall before installing the Nest base. Tip: You can paint the Nest trim plate to match the color of your wall. If you’d like to paint your trim plate, make sure to paint it before it's installed Make sure not to get any paint on your wiring, the Nest base, or your thermostat's display Pull the wires through the center of the base, then attach it to the wall with the screws.
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Terminals with wires should stay pressed down. f the button doesn’t stay down, take the wire out, straighten it, and put it back in as far as it will go. You may need to strip the end of your wire to make sure enough copper is exposed. mportant Do not put more than one wire in each connector on the Nest base mportant: Do not connect any “spare” wires to your Nest thermostat that were not connected to your old thermostat. Only use the wires on your Nest wiring diagram.
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Tip: If you don’t hear the display click, use your thumb to push the wires further into the wall. This will make sure the wires aren’t stopping the display from connecting to the base. 11. Switch power back on After turning the power back on, your Nest thermostat should power on automatically If it doesn’t turn on, you might see a blinking red light to indicate that the battery is charging.