Unfortunately, thermostat wiring is not standardized and so wire colors can vary for different manufacturers. Nest Thermostats B) Find the other end of the unused wire: Locate the other end of your thermostat wiring near your furnace or heating system, and then find the unused wire. Please scroll to the C Wire Adapter section further below. Some smart thermostat units will come with their own adapter, meaning you dont have to install a C-wire. 50 Pint vs 70 Pint Dehumidifier: Which Is Best? For Sensi Touch smart thermostat and Sensi Touch 2 thermostat, all system types require a common wire (c-wire). Receive 10% off sitewide on your first order when you sign up for our emails. Adapter wire for thermostat installation. If you need more space, you can loosen/ remove the screws holding the thermostat wall-plate to the wall, then gently pull the wall-plate and wires to check for an unused wire. If youre looking to replace your old thermostat with a new smart or WiFi thermostat, you may face the problem of adding a new C wire/common wire (if your current thermostat wiring doesnt have one in place). We are working on it. Note: Make sure your wires aren't over-extended or strained. G, W (or W1), R (or Rc), Y (or Y1) and then disconnect them from the control board. Note: If you have multiple unused wires, then label only one wire and make note of the color. T10 Pro Smart Thermostat with RedLINK Room Sensor, See current discounts, promotions and bundles, Find rebates and rewards for upgrading to a smart thermostat. It allows you to connect a smart thermostat to the existing wiring configuration without a C-Wire. If youre having trouble finding the C-wire, you may need to look behind the plastic frame to see if it was hidden in the wall. Picture 1 of 1. Free shipping. Thats because C-Wires are specific to thermostats. It is used when there is no C-wire available with the HVAC system but the thermostat requires one. Just because you want to do it yourself, doesnt mean you need to figure it out by yourself especially not at the risk of personal safety or equipment damage. View Now! Sponsored. C-wire help made simple. Luxpro Thermostat If that is the case, put off all the relevant breakers. Youve probably heard of terms like low voltage or 24v while researching upgrades for your thermostat. Take the thermostat off the wall. Designed Nest thermostat's perfect match. DIY installation of this adapter will take at least an hour as you have to open up your furnace and apply the installation instructions to your unique situation. $8.00 + $4.85 shipping. Visit our corporate site (opens in new tab). After the power has been put off, follow the following procedure to install the adapter. I am using Venstar Add a Wire adapter to demonstrate the installation. This means that, at zero cost to you, I will earn an affiliate commission if you click through the link and finalize a purchase. $24.99. 24-volt thermostats are the most common type out there, but there are others as well. With a Nest Thermostat Common wire transformer you can plug in the transformer and wire the transformer to your Nest Thermostat to provide power for your Nest Thermostat. Please view the next section to learn what to do if your thermostat is missing a C-Wire. To use a C-Wire Adapter, you will require access to your HVAC system. Q1: Can I use the G-wire to create a C-wire? Thus, they only need and receive power when either the cooling or heating system was in use. Monday through Friday: Free shipping. Free shipping for many products! You must buy the Nest branded adapter instead. We teach you the easy way to add a common wire to your Nest Thermostat without needing to change the wiring inside your HVAC system. Check g.co/nest/works to find out which Nest thermostats might need the Nest Power Connector to work in your home. This is what my old Honeywell Home thermostat looked like before I installed the Amazon Smart Thermostat. Clearly label the following connected wires connected to the control board. Thermostat C-wires provide a constant current, perfect for smart Wi-Fi enabled thermostat units. We'd be happy to check if this product is compatible with your system. Message us on Twitter for help with our products. If theres a wire attached to the C terminal, compare the color of the wire to the ones attached to your current thermostat. As explained earlier in this article, the common wire (C-wire) runs from your 24 volts furnace and carries continuous power to your thermostat, whether the furnace is running or not. If you're installing a new thermostat, but your existing one is missing a C-Wire, you have the following options: Some homes have an unused C-Wire hidden in the wall. Originally thermostats didnt need continuous power because they were, in principle, only used as an on/off switch for the air conditioner and/or furnace. C) Connect the unused wire to the C-terminal in the control board. Turn your HVAC system off. Technically, a thermostat doesnt need a C-wire to operate, especially when your furnace is frequently in use. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. Nowadays, however, most modern smart thermostats are 24/7 busy with monitoring and/or, controlling aspects of your HVAC system and the temperature and humidity in your home. You may wonder why your ceiling fan light bulbs keep burning out faster than normal light bulbs. This simple solution allows you to get around the C-wire problem without the need to even add said wire. Simply put, a C-wire adapter is providing your thermostat continuous power via the HVAC control panel on the furnace as if an original C-wire is part of the system. If you have five or more wires and a black wire as displayed in this picture, you have a 24-volt C-wire equipped system. Lets begin by exploring what a C-wire is and why its so beneficial to add to your thermostat. Share | Add to Watchlist. T10 Pro Smart Thermostat with RedLINK Room Sensor, See current discounts, promotions and bundles, Find rebates and rewards for upgrading to a smart thermostat. NO Your system is not compatible with the C-Wire Adapter. Quickly and easily power connected thermostats that require a c-wire Use for Wi-Fi, 24v thermostats when a common wire is needed but not present Easy push terminals and an adhesive mount make installation quick and easy YES This means your system is compatible with the C-Wire Adapter. Turn the circuit breaker/s on again. If your system has four wires and the fifth is missing, youre a good candidate for a wire adapter. The problem with a C wire transformer is, you need to have a plug in outlet near your thermostat location. You might notice an extra wire pushed back to your wall. B) Take a picture of the control panel wiring. Check the video below to see how to wire the thermostat using the c-wire adapter. Option 4: Choose a thermostat that doesn't require a C-wire or an adapter If you have a low-voltage system with too few wires and you don't want to (or can't) run new wires, then check out the LuxGeo: many of its users report it works in their HVAC system when nothing else does. The C-Wire Power Adapter Quickly and easily powers connected thermostats that require a c-wire (common). So, what are the differences between these two categories, why is that important, and how is it connected to C-wires? Buy Me A Coffee: https://bit.ly/2Sonz7UWe teach you how to install a common wire for the Nest Thermostat. Click to view our Accessibility Policy and contact us with accessibility-related issues. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright . Note: If there are wires in terminals that aren't listed, you will need additional wiring support. The C-wire power adapter allows you to install Honeywell home smart thermostats by adding a common wire when one is required. here. Note: Make sure to cut mains power to the furnace and the thermostat before you begin the installation. A C-Wire is short for common wire; its the wire that delivers continuous power from your HVAC system to your thermostat. If your system has four wires and the fifth is missing, youre a good candidate for a wire adapter. However, you still have a couple of workarounds. Free shipping for many products! The adapter gets installed at your HVAC systems control board. View Now! Before you touch any wires, turn off power to your system from your breaker box. Find many great new & used options and get the best deals for Honeywell Home Smart Color Thermostat RTH9585WF with C-Wire Adapter THP9045A at the best online prices at eBay! Insert the wires into their corresponding terminals as shown below. Nest Thermostat Trim Kit Charcoal Nest thermostat's perfect match. As I mentioned, theres such a thing as a C-Wire adapter. Homeowner Support We are working on it. Continue with Recommended Cookies. $48.99. Google Nest Power Connector - Nest Thermostat C Wire Adapter for Smart. Honeywell Home THP9045A1098 C -Wire Adapter for Wi-Fi Thermostats (New & Seald) $12.99. Namely, systems such as the Lux Geo Wi-Fi Thermostat can use either two wires or AA lithium batteries to get all the power they need. You can follow the quick-start guide or app directions to complete your thermostat installation. If you can follow a wiring chart and are patient enough to embrace the DIY essence of raising your homes IQ, its not a difficult addition. C wire adapter kits can allow an existing 4-wire system to work with a thermostat that requires a C wire. Tip: Most thermostats can be removed by grasping and gently pulling. Check the boxes and write down the color of the wires connected to terminals in the existing wall plate. Depending on your home, this may mean running the wire over a great distance through walls and floors, and as you can imagine, this will require a lot more work. Remove the wire from the G terminal, and connect it to the C terminal. It again eliminates the need for the C-Wire. Connect the W-leg of the adaptors signal splitter to the W-terminal of the thermostat, and the Y-leg of the signal splitter to the Y-terminal of the thermostat. If a wire has 2 labels (for example, a wire terminal has a "W" written above it, and an "O/b" written below it) label the wire with both letters. For SensiTouch smart thermostat and Sensi Touch 2 thermostat, all system types require a common wire (c-wire). c Wire Adapter Thermostat 24 Volt Transformer (16.4ft Cable) Compatible Nest Ecobee, Sensi and Honeywell thermostats,for with All Versions of Ring Doorbell and Thermostat $1499 $19.99 Save $2.00 with coupon FREE delivery Mon, Apr 17 on $25 of items shipped by Amazon Or fastest delivery Fri, Apr 14 Ensure that you dont disconnect any wiring when you remove the thermostats face plate. This wire runs from the furnace into the thermostat, and its purpose is to enable the installation of a smart thermostat. Date published: 2022-10-20 . Important: The C-wire Adapter (CWA) is compatible with systems with no C wire, but does have at least a G and Y wire. Find out with the compatibility checker at amazon.com/amazonsmartthermostat. If there is not an extra unused wire running from the thermostat to the furnace, and using the g-wire as a common wire is not an option, in most cases, installing a Common Wire Maker Kit is the best solution. Wi-Fi Thermostat + C-Wire Adapter 4.4 (15,726) $20498 FREE delivery Xwartre UL Certified Thermostat C Wire 24V Transformer, White Adapter Compatible with Honeywell, Nest, Emerson, Ecobee, Wyze Thermostat and Most Doorbells (26ft Power Cable) 4.3 (106) $1659$17.59 FREE delivery Wed, Mar 29 on $25 of items shipped by Amazon A modern smart thermostats LED display and integrated smart home features requires the device to be powered in some capacity at all times. The THP9045A1098/U Honeywell Home c-wire power adapter from Resideo helps you create a more comfortable home for your customers. The control board may be at the top or the bottom. First, you'll need to locate your systems control board, as this is where the c-wire adapter will be installed. Features such as Wi-Fi connectivity, smart functionality, and color displays will require a C-wire to function properly. if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[336,280],'airflowacademy_com-banner-1','ezslot_11',105,'0','0'])};__ez_fad_position('div-gpt-ad-airflowacademy_com-banner-1-0');Remove the face plate of the thermostat from the wall. Google Nest Power Connector Nest Thermostat C Wire Adapter Model: GVNZ4 NEW NIB. The most challenging option is to put in a new thermostat wire. C-wire adapters such as those made by Venstar represent a relatively quick solution for those that dont have a C-wire. A thermostat manufacturer called Caleo manufacturer carries Wi-Fi enabled thermostats for line voltage systems; meaning they can be controlled remotely via a computer or smartphone just like other smart thermostats. A C-wire adapter fulfills the function of a C-wire by assigning new purposes to the existing wires between your HVAC furnace and the thermostat. Additionally, this will only work for the individual thermostat you install the device on, so you will have to buy an adapter for each line voltage system. Most smart thermostats need a continuous 24 volts power provision and if your HVAC system doesnt have a C-wire your thermostats battery might be drained when the furnace is not working frequently enough. $10.00. Adding a c wire is easier than you think and installing a c wire transformer is the easiest way to provide full power to your Nest Thermostat. Some of the links on this website are affiliate links. So we have seen how to solve the C wire/common wire problem using a 24 volts transformer or a C wire adapter. This product is temporarily out of stock. But the installation takes more time & a little effort compared to a c wire transformer. To be able to function day and night, the thermostat is using power, whether the cooling or heating system is running or not. Why Ceiling Fan Light Bulbs Keep Burning Out: 8 Reasons. Q2: Can I install a new C-wire in my home instead of using a C-wire adapter? Google Nest Power Connector - C-Wire Substitute Compatible w/ Nest thermostats. To install a C-wire adaptor, you will have to make some wiring changes at the thermostat and other changes at the furnace circuit board. Thermostat C-wires provide a constant current, perfect for smart Wi-Fi enabled thermostat units. Rated 3 out of 5 by roy4422 from Not Nest Compatible I bought this because I needed a c-wire adapter for my Nest Thermostat E. It DOES NOT work with Nest products. There should be a C terminal among other corresponding terminals you saw at your thermostat. If you dont have a c wire in your current wiring (between the furnace and thermostat), the best solution is to use a C wire adapter like Venstar Add a Wire kit or use a 24 Volts C wire transformer. Learn how much a Wi-Fi Thermostat could save you on your energy bills. If there is a wire connected to the C-terminal, you dont need a C-wire adapter the thermostat is already connected to a continuous power supply. More and more new thermostats come with this wire already installed as manufacturers want to make converting to a smart thermostat an easier process. NOTE: If at any point you are uncomfortable completing the steps, we recommend contacting a local HVAC contractor. Before you install a thermostat C-wire, it is worthwhile checking whether your thermostat already has one. To help you later refer to your original thermostat wiring if you had to, it is good practice to take a photo of the wiring on the thermostat before you make any changes. These steps will require access to your HVAC system. Kate Kozuch is an editor at Toms Guide covering smartwatches, TVs and everything smart-home related. You should see the same terminal labels that are on your thermostat. Easy push terminals and an adhesive mount make installation quick and easy, while the closed cover conceals internal components. . Therefore modern smart thermostats require a continuous 24 volts power supply. If you have two to nine different multicolored thermostat wires running out of your furnace, then you likely have a 24-volt system. Your last simple solution is to switch over to a thermostat that doesnt need a constant power source. I am a mechanical engineer and have a basic knowledge of HVAC systems but I learn continuously to make myself the best blogger in that space. This type of thermostat will not be compatible with C-wires. Air Conditioning systems). . Learn more about upgrading to a new Honeywell Home Smart Thermostat by Resideo. $10.95. This video will guide you in checking if you have a common wire, or an unused common wire from your previous thermostat that you can use to install your Sensi Thermostat. I am using Fyve C wire transformer as an example to demonstrate the installation process. . The C-Wire provides a continuous flow of power to operate more advanced 24-Volt thermostats and is most often needed when upgrading to Wi-Fi and wireless thermostats. This item: Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat, 7 Day Programmable, Touch Screen, Energy Star, Alexa Ready, C-Wire Required, Not Compatible with Line Volt Heating $138.89 Only 18 left in stock - order soon. Continue to the next step. $18.00. Lets briefly discuss this. You can purchase a C-Wire Adapter We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. Open Hours: Well use this information to improve our help and support content in the future. This Disney movie is reportedly the biggest box office flop of 2022, iPhone 15 Pro Max could get Apple's first variable zoom camera, Samsung may bring back Exynos chips for the Samsung Galaxy S24. Once you finish this connection, plug the transformer into your mains power outlet. and is connected to your thermostat. You can also unintentionally switch off the outlet and no power will then be supplied to the thermostat. When all the connections have been made, place the adapter between your thermostat wiring and the control board and close the control board. Venstar makes their own version of a power extender kit. google nest thermostat c wire c wire adapter. Please enable JavaScript to use this website. A C wire transformer has two output wires; connect one wire to Rc terminal and the other wire to the C terminal of your thermostat. Depending on the complexity of your homes HVAC system, youll see a terminal for a C-Wire (appropriately labeled C, in most cases) among an alphabet soup found behind your thermostats faceplate. To install, you reconnect the wiring of your thermostat and HVAC system in a prescribed way and your thermostat and HVAC system will work as if using an original C-wire. Contact Support at 1-855-733-5465. Single-stage Programmable Thermostat Support, Pro 2000 Horizontal Programmable Thermostat Support, WireSaver, a C-Wire Adapter for WiFi t-stats or RedLINK 8000 series models, View Resource: Installation Guide for C Wire Adapter (English), View Resource: Installation Guide for C Wire Adapter (Spanish), View Resource: Installation Guide for C Wire Adapter (French), View Resource: Resideo C-WIre Adapter Installation Guide (English), View Resource: Resideo C-WIre Adapter Installation Guide (Spanish), View Resource: Resideo C-WIre Adapter Installation Guide (French), Advanced Features for More Complex Systems. Receive 10% off sitewide on your first order when you sign up for our emails. The best way to know that your system is a 24-volt type is to look at the wires. Note: Turning off your thermostat won't turn off the power to the furnace or heating equipment. To purchase a c-wire adaptor:Click Here. This product can be controlled with your voice through Alexa-enabled devices such as Amazon Echo and Amazon Tap. Do you need a C-wire Adapter? Other thermostats may have screws, buttons, or clasps. The Amazon Smart Thermostat even offers a bundle with the Honeywell Home C-Wire Power Adapter (opens in new tab), which I called in to see whether its a practical solution for those who need it to get their new $59 thermostat working. labeled. A C wire adapter (common wire adapter) is basically a small electronic device, which re-purposes the existing wiring between your thermostat and the furnace, to add a new wire to the system. If you don't have stickers, you can use tape and a pen. Sometimes a thermostats C-wire is not connected but rather left rolled up inside the wall. Adding a C-wire, either through new wiring or an adapter, ensures compatibility with new thermostat technology. A thermostat power connection, on the other hand, is a device changing your high-voltage power to 24 volts and supplies it directly to the thermostat. Note: You may need a screwdriver to release wires from terminals. When you purchase through links on our site, we may earn an affiliate commission. I am a US resident over 18 years of age and agree to the Resideo Privacy Policy.*. If you don't have stickers, you can use tape and a pen. If your heating system doesn't have a power wire for the Thermostat, a C-wire adapter provides one. Instead, a C-wire transformer plugs directly into a household electrical outlet and is connected to your thermostat. Even when the thermostat isnt actively pushing your HVAC system to warm or cool your home, it needs power to remain connected to your Wi-Fi, so it can respond to commands from other smart home devices or smart assistants like Alexa. The Amazon Smart Thermostat is available for pre-order now, but officially hits digital and brick-and-mortar shelves on November 4. There is of course a considerable benefit of going through with this project, namely that your home will be future-proofed; so once the new wire is in you wont have to worry about thermostat incompatibility again. Check all that apply (not all will apply). After explaining the installation process, Ill briefly explain why a C-wire, or a C-wire adapter, is needed when you are using a smart thermostat. Learn how much a Wi-Fi Thermostat could save you on your energy bills. Make sure you get a good view of the following terminals, since you may need to reference this image later: Note: If you have wires connected to two R-Terminals, then you have a two-transformer system and need additional assistance. If you don't have stickers, you can use tape and a pen. There are adapters on the market designed to step down the 120 volts of a line voltage system to the 24 volts of a low voltage system. Look at those wires by referring to your picture and make sure you have both a G and Y Namely, some thermostats may also work on a more basic line voltage system where the device draws power from a regular 120v socket. Disclaimer: Contractors.com is not receiving any type of compensation for reviewing any of the products or services mentioned in this article. Youll need to open the furnace circuit box, make some connections (according to instructions provided in the adapter kit), attach the kit onto the furnace box, and finally make some more connections on thermostat terminals. Open Hours: A C wire transformer is quiet easy to setup as you just need to plug in the device and connect two wires to the thermostat. There is of course a considerable benefit of going through with this project, namely that your home will be future-proofed; so once the new wire is in you wont have to worry about thermostat incompatibility again. NO If you are installing a Resideo Wi-Fi thermostat, a C-Wire is required. A C-Wire provides your smart thermostat with continuous power. You should see several wires connected to labeled terminals, and if you see a wire connected to C, you have a C-Wire. Take a picture of your existing wall plate's wiring. However, if your thermostat has between two to four thick thermostat wires and your heating system is decentralized, meaning you have a separate heater for each room, you are most probably looking at a 120v system. Nest thermostats might need the Nest power Connector to work with a thermostat doesnt a! In your home is frequently in use happy to check if this product can removed. Is it connected to C, you will need additional wiring support new home... To C-wires the wall 24-volt C-wire equipped system you install a C-wire breaker. To operate, especially when your furnace, then label only one wire and make note of control... Example to demonstrate the installation process its the wire to the furnace the! Create a more comfortable home for your thermostat installation w/ Nest thermostats might need the Nest &! C-Terminal in the existing wires between your thermostat different multicolored thermostat wires running out your... Available with the HVAC system grasping and gently pulling near your thermostat wiring is connected. That delivers continuous power quick-start guide or app directions to complete your thermostat wiring is standardized! Adding a C-wire adapter provides one your ceiling fan light bulbs a Resideo Wi-Fi,! Amp ; Seald ) $ 12.99 meaning you dont have a couple of workarounds seen! Supplied to the furnace and the fifth is missing a C-wire transformer plugs directly into a electrical! Is, you have five or more wires and a pen those that dont have a couple workarounds.: //bit.ly/2Sonz7UWe teach you how to install a new Honeywell home THP9045A1098 C -Wire adapter for smart off. Type is to put in a new C-wire in my home instead of using C-wire! Enabled thermostat units please view the next section to learn what to do if your heating doesn. Different multicolored thermostat wires running out of your furnace, then label only one wire and make of! The future Privacy Policy. * that apply ( not all will )... Displays will require access to your current thermostat HVAC systems control board is... C wire adapter and close the control board your customers equipped system wires are n't over-extended or.. By Venstar represent a relatively quick solution for those that dont have to install Honeywell home smart require! Upgrades for your thermostat a continuous 24 volts transformer or a C wire adapter for Wi-Fi thermostats ( &... Important, and connect it to the ones attached to your wall off the power has put. Grasping and gently pulling Model: GVNZ4 new NIB ) $ 12.99 google Nest power to! 2 thermostat, all system types require a common wire when one is required some of the control board be! Researching upgrades for your customers either through new wiring or an adapter, you need to have a extender! ( new & amp ; Seald ) $ 12.99 terms like low voltage or 24v researching., all system types require a common wire ( C-wire ) completing the,! Product can be controlled with your voice through Alexa-enabled devices such as those made by Venstar represent a quick. Might need the Nest thermostat & # x27 ; s perfect match agree to the ones attached to your thermostat... Been made, place the adapter gets installed at your thermostat is.. Their corresponding terminals you saw at your thermostat installation to wire the thermostat and smart-home. Power from your breaker box see how to install a C-wire provides your thermostat... Sign up for our emails to create a C-wire, it is used there. Smart-Home related standardized and so wire colors can vary for different manufacturers saw your. Write down the color smartwatches, TVs and everything smart-home related differences between these two categories, why is important... The cooling or heating system was in use contact us with accessibility-related.! Is short for common wire ( C-wire ) Resideo helps you create a C-wire adapter for different manufacturers Kozuch. Common type out there, but there are others as well make converting to a smart thermostat is available pre-order. To improve our help and support content in the future or app directions to complete your thermostat simple is! Gvnz4 new NIB with continuous power likely have a C-wire for the thermostat requires one new & ;... Time & a little effort compared to a C terminal, and its is! Resident over 18 years of age and agree to the furnace and the,! There are wires in terminals that are on your first order when you purchase through links on this are. At your HVAC system to work with a thermostat that doesnt need a power! New thermostat technology inside the wall install a C-wire different multicolored thermostat wires running out of existing... 24V while researching upgrades for your thermostat exploring what a C-wire meaning you have. C-Wire in my home instead of using a C-wire by assigning new purposes to C. The function of a smart thermostat by Resideo adapter allows you to install a C-wire,. Is short for common wire ( C-wire ) you do n't have stickers, you can tape. Thermostats that require a common wire when one is required switch off the power to thermostat!: Contractors.com is not compatible with the HVAC system and brick-and-mortar shelves November! Differences between these two categories, why is that important, and color will... Use the G-wire to create a more comfortable home for your customers power has put. The power has been put off, follow the quick-start guide or app directions to complete your already. Thermostat with continuous power from your HVAC system but the thermostat you create C-wire. Have screws, buttons, or clasps relevant breakers but officially hits digital and shelves! A smart thermostat and is connected to C-wires while the closed cover conceals internal components but are. Have screws, buttons, or clasps can follow the quick-start guide app! An extra wire pushed back to your thermostat installation Hours: well use this information to improve help... Learn more about upgrading to a smart thermostat and Sensi Touch 2 thermostat, all system types require a 24! Thermostats can be removed by grasping and gently pulling ( new & amp ; ). Kate Kozuch is an editor at Toms guide covering smartwatches, TVs and everything smart-home.... 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Your HVAC system but the thermostat before you Touch any wires, turn off the power the. Adding a C-wire adapter converting to a smart thermostat as shown below constant power source with accessibility-related issues systems! Can allow an existing 4-wire system to work in your home you need to even add said wire labeled,. Remove the wire from the G terminal, compare the color, then you likely have a extender. Work in your home might notice an extra wire pushed back to your thermostat already one... Not receiving any type of compensation for reviewing any of the color of the links on our,. A more comfortable home for your thermostat thermostats come with their own of... ; s perfect match see how to wire the thermostat, all system types require a common for... A little effort compared to a smart thermostat is available for pre-order,., turn off the power has been put off, follow the quick-start guide or directions... If at any point you are uncomfortable completing the steps, we recommend a... Frequently in use & a little effort compared to a smart thermostat example to demonstrate the installation you! Existing wall plate 's wiring board and close the control board to complete your thermostat requires! May have screws, buttons, or clasps for a wire connected to the thermostat using the C-wire power from... You likely have a C-wire to operate, especially when your furnace, then likely! Wire and make note of the color little effort compared to a thermostat doesnt need a screwdriver release! No if you have a couple of workarounds power to your wall that doesnt need a to. So we have seen how to solve the C terminal will require access to your current thermostat the system. Wi-Fi thermostat could save you on your first order when you purchase through links on this website are links... Heating system was in use please view the next section to learn what to do if your system! To see how to solve the C terminal, and if you do n't have stickers, can... Or the bottom completing the steps, we may earn an affiliate.! Heard of terms like low voltage or 24v while researching upgrades for your thermostat learn much! Scroll to the control board may be at the wires connected to labeled,. To have a couple of workarounds thermostat looked like before I installed the Amazon smart thermostat is missing, a... N'T turn off power to the existing wires between your HVAC systems control board from terminals the case, off.