Get the App Here:
Search “Total Connect Comfort” in the App Store or Google Play. Download the app to your smartphone or tablet to learn how to install and use your thermostat.
Watch a series of short videos that help you install your thermostat, including determining your system type, the installation process in steps, registering your thermostat and more.See Videos Below.
Installation Guide PDF
Download PDFs of manuals and guides in the resources section below, such as Quick Start and User Guides.
An extra unused wire in the wall can be used as the C wire for your new thermostat. The extra wire will also need to be connected to the C (common) terminal at the heating and cooling system. This will provide power to your new thermostat.
Please note that the C-wire is only needed for Wi-Fi connected thermostats [click here to see our Wi-Fi thermostats]. Most standard thermostats do not need a C-wire.
Please refer to the videos below for more information:
What Is a C-Wire?
What if I Don't Have a C-Wire?
You are probably connected only to your router, not to your thermostat. Try connecting to the thermostat again.
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The Wi-Fi thermostat works with the new iOS 9, operating system, however iOS 8 does not work for the initial thermostat installation. Please use a Wi-Fi connected computer, Android tablet or smart phone for the initial installation.
Each thermostat has a unique MAC ID and MAC CRC which is unique to your device. You’ll need to know these numbers in order to register your thermostat or to perform some troubleshooting activities. The MAC ID and MAC CRC represent the alphanumeric code displayed on the thermostat screen during the registration process. It is also located on the thermostat registration card inside the thermostat packaging. You can also find it on the back of the thermostat simply by taking the thermostat off the wall plate [see illustration]. MAC ID and MAC CRC are not case sensitive. Upper and lower case characters will work.
Location of MAC ID and MAC CRC on the thermostat display
Location of MAC ID and MAC CRC on the registration card
Location of MAC ID and MAC CRC on the the back of the thermostat
Verify that the thermostat is correctly enrolled on your home Wi-Fi network. The thermostat will display "CONNECTION SUCCESSFUL" or "REGISTER AT TOTAL CONNECT." You might also see the Wi-Fi Signal strength icon. Verify that the Wi-Fi router has a good internet connection. On your computer, verify that you can open the site at mytotalconnectcomfort.com. If you cannot open the site, switch off the internet modem for a few seconds, then power it back on.
For more information, please watch this instructional video:
If you are still unsure if your new thermostat is wired correctly, please contact Honeywell Customer Care at 1-855-733-5465.
Your old thermostat model may not have required a wire connected to a C terminal. Honeywell offers many great non-connected thermostats that do not require the need for a C wire to power the device. Most of these thermostats are powered by basic AAA or AA batteries.
The C wire or Common wire is necessary to provide 24-volt power to your Honeywell Wi-Fi or connected thermostat (exception is the Lyric Round) and for use with Apple HomeKit.
If this wire is not plugged into the C terminal, and you want to know if you have one or not, be sure to check if there is an extra wire that is pushed into the wall or wrapped around the wire bundle coming from the wall. Gently pull on the wire bundle to check whether there are any additional wires.
If you do find an extra wire, you can try connecting it to your thermostat's C terminal, but you must also ensure that the same wire is connected at the furnace's terminal panel. Please review our Thermostat Wiring Compatibility page for pictures and step by step instruction to confirm that your system meets compatibility requirements.
If you do not have a C wire and need one to power your Wi-Fi or connected thermostat, there are several options like using a Honeywell Wire Saver Module, a thermostat that uses phantom power or the G wire solution. Please view, What options do I have if I don't have the "C" or common wire? for additional information.
For directions and alternative wiring options, please refer to this instructional video:
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