Comfort Sync® A3 Smart Thermostat
Everything you need to set up and use your Comfort Sync A3 Smart Thermostat including user guides and warranty information. For questions or service beyond normal setup, connect with your installing dealer for additional support.
Get the MyHomeComfort App
Now supporting Comfort Sync A3 thermostats. Get the MyHomeComfort app now.
Comfort Sync Zoning
Comfort Sync A3 Zoning Sensor
Allows precise temperature control for up to four areas within the home.
Comfort Sync Homeowner Resources
User guides and Warranty information
Important: Thermostat wiring, internal settings, and advanced configuration should not be adjusted by homeowners. Incorrect changes can affect system performance, safety, and warranty coverage.
Need Additional Support?
Frequently asked questions regarding getting advanced support for your Comfort Sync system.
Check your original invoice, the Comfort Sync A3 Smart Thermostat menu, or the service sticker on your equipment.
If you’re unable to find that information, contact a local licensed HVAC professional. When you reach out, let them know you have a Comfort Sync thermostat so they can provide the appropriate support.
Dealers have the training and tools needed to resolve issues quickly and safely. Your dealer will verify that the thermostat and connected equipment are configured correctly and use professional diagnostic tools and system data to identify problems. Dealers can also adjust zoning, humidity, and airflow as needed, and perform electrical and control work safely to protect system performance and warranty coverage.
Thermostat wiring, internal settings, and advanced configuration of the Comfort Sync A3 Smart Thermostat should not be adjusted by homeowners. Making incorrect changes can impact system performance, compromise safety, and potentially affect warranty coverage. For advanced adjustments, contact the licensed HVAC dealer who installed your system.