Comfort Sync - Support

Getting the Most Out of Your Comfort Sync Wi-Fi


Can I install a Comfort Sync thermostat myself? Go to Top

Installation should only be performed by an authorized dealer.

Wireless Connection

How do I enable my wireless connection to work with the Comfort Sync thermostat?Go to Top

Your dealer can provide assistance with this procedure if desired. Or you can connect your Comfort Sync to your wireless network.

  • Press “Wi-Fi” on the Comfort Sync thermostat
  • Press “Enable Wi-Fi”
  • Press “Agree” to the Terms and Conditions to proceed
  • Select your network from the list of available networks or enter it manually if it does not appear in the list
  • Enter your wireless network password and press “Connect” to complete the connection process

If your thermostat will not connect, contact your installing dealer or call 1-877-924-2677 for assistance.


How do I get access to the website to control my thermostat?Go to Top

You must register the product from the thermostat itself before gaining access to the website.

Your dealer will need to assist you with the first step of the registration process. Your installing dealer will enter the specifications of your system along with his or her contact information.This will allow your dealer to receive alerts via email when service or regular maintenance is needed.

How do I register? Go to Top

Registration takes a few steps at the thermostat as well as on your computer.

  • After enabling a wireless connection, enter your email address in the space provided
  • Press “Register”
  • Wait for the registration email to appear in the inbox for the email address you entered previously
  • Once the email is received, click on the link to begin the registration process online and set up your account

How do I set up an account? Go to Top

Upon initial registration as a first time user, you will need to follow a few simple steps

  • Step 1: User ID and Password

  • Step 2: My Profile: Enter your name and phone number to create your profile

  • Step 3: My Systems: Enter your home information

  • Click on "Show home details" to opt in for "alerts & reminders" to be sent to you as well as your Lennox Dealer

  • Step 4: My Dealer: Confirm or enter your dealer contact information

How do I change information in My Profile? Go to Top

During initial registration, simply select the back button at the bottom of the screen to edit any content.

After initial registration, select the  "My Account"  link in the upper right corner of the website to edit your information.

How do I obtain or reset my password? Go to Top

Log on to and click the "Forgot Password"My Account" and follow the prompts.

How do I add another Comfort Sync thermostat to my account?Go to Top

Upon initial registration, on Step 3: My System, click the "Add Home" button and fill in the additional information. After initial registration, select the "My Account" link in the upper right corner of the website and then select  "My Systems" and "Add Home".


Can I still manage my thermostat remotely if I don’t have a smart phone? Go to Top

Yes. You can access the website from any web enabled device and control your Comfort Sync thermostat.

Where can I download the Comfort Sync mobile app? Go to Top

Search for "comfort sync" in any of the following apps stores to download the free app.

How much does the Comfort Sync mobile app cost?Go to Top

The cost of the app is free to download for all Comfort Sync owners.


Owner’s ManualGo to Top

Download the Owner’s Manual  pdf

Alert Codes and Troubleshooting Go to Top

Download the Alert Codes and Troubleshooting   pdf


Still need help? Go to Top

For additional assistance, on any topic not covered here please contact your installing dealer or call us at 1-877-924-2677.