Our Products

MyHomeComfort CA4 Thermostat side profile image

MyHomeComfort CA4 Communicating Thermostat

MyHomeComfort Room Sensor image

MyHomeComfort
Smart Room Sensor

MyHomeComfort Wireless Extender profile image

MyHomeComfort
Wireless Extender

Comfort Sync®A3 image

ComfortSync A3 Communicating Thermostat

Comfort Sync Zoning Device Image

Comfort Sync A3 Zoning Sensor

Homeowner Resources

MyHomeComfort


CA4 Thermostat Homeowner Quick Start Guide

English | French | Spanish

Smart Room Sensor Homeowner Quick Start Guide

English

Wireless Extender Homeowner Quick Start Guide

English

Comfort Sync


A3 Quick Start Guide

English

A3 Homeowner's Manual

English

Need support?

Contact your installing dealer.

Your thermostat is supported directly by the licensed HVAC dealer who installed your system.

Describe what’s happening.

Follow your dealer’s guidance—they may walk you through a few quick checks or schedule a service visit.

Why contact a dealer?

Dealers have the tools and training to solve issues quickly and safely. 

Your dealer will confirm your thermostat and equipment are configured correctly and diagnose issues using professional tools and system data.

They’ll also adjust zoning, humidity, and airflow as needed and handle safe electrical and control work to protect your system and warranty.

Don’t know your installer?

Check your original invoice, thermostat menu, or the service sticker on your equipment.

If you can’t find that information, contact a local licensed HVAC professional.

When reaching out, let them know you have a MyHomeComfort or Comfort Sync thermostat so they can provide the right support.

Important: Thermostat wiring, internal settings, and advanced configuration should not be adjusted by homeowners. Incorrect changes can affect system performance, safety, and warranty coverage.

Dealer Resources

This section is intended for Licensed HVAC professionals who service or install MyHomeComfort or Comfort Sync products. If you are a homeowner, please contact your installing dealer for support.

MyHomeComfort Technical Documentation

MyHomeComfort Product Flyer

English 

CA4 Communicating Thermostat Installation and Setup Guide

English 

CA4 Communicating Thermostat Installer User Guide

English 

Smart Room Sensor Installer Quick Start Guide

English | French | Spanish

Smart Room Sensor Installation and Setup Guide

English 

Wireless Extender Installer Quick Start Guide

English | French | Spanish

Wireless Extender Installation and Setup Guide

English 

Comfort Sync Technical Documentation

A3 Thermostat Installation and Setup Guide

English

A3 Thermostat User Guide

English

A3 Thermostat Service Manual

English

A3 Zone Sensor Installer Installation Manual

English

A3 Zone Sensor User Manual

English

ComfortSync A3 Thermostat Video Cover Image

The Comfort Sync A3

Discover how the Comfort Sync A3 Ultra-Smart Thermostat optimizes Pro Series system performance

Watch Video (opens in new window)