Lennox S40 Smart Thermostat Support

Get Started with Your Lennox S40 Smart Thermostat

Description

Welcome to your go-to resource for getting started, setting up your thermostat, and solving common issues. From step-by-step guides to troubleshooting tips, we’ll help you unlock the full potential of your thermostat and keep your home comfort running smoothly.

Where To Buy

Getting Started

Key Features

Resources

FAQs

Your Home Comfort Command Center

Just a few quick steps to get your Lennox L40 Smart Thermostat set up online and to redefine comfort and efficiency for your entire home.

S40 Quick Start Guide S40 User Guide

Set Up Wi-Fi

Once your Lennox Smart Thermostat is connected to Wi-Fi, you’re ready to create an account and take control. If you already have an account, simply sign in using your email and password.

Create Account / Login

Once your Lennox Smart Thermostat is connected to Wi-Fi, you’re ready to create an account and take control. If you already have an account, simply sign in using your email and password.

Enable Advanced Diagnostics

Protect your investment and peace of mind with active monitoring of system operations through your Lennox S40 Smart Thermostat. This feature is free of charge and provides basic maintenance reminders, alerts you of potential issues, and can even allow you to remotely share diagnostics with your local Lennox dealer to troubleshoot and fix problems. This proactive care helps eliminate downtime and avoid unnecessary service visits and repair costs, ensuring nothing short of perfect air.

Download the Lennox Home App

You can now access your account through either your Lennox Smart Thermostat or the app. Add a new thermostat, create a new account, or change your settings, whenever you want.

Set Up Wi-Fi

From your thermostat's home screen, go to Menu > Settings > Wi-Fi.

Slide the option to the ON position to enable Wi-Fi.
Press on "Not Connected" to display a list of available access points.
Locate home network and select the network name.
Enter the home Wi-Fi network password and press join to continue. If successful the Thermostat Connectivity Status indicator will show checkmarks across all connections

Create Account / Login

Create Your Account Login Credential on your Lennox Smart Thermostat

Select "Create New Account".
Enter account details such as your first and last name, phone, email address, and password.
Select whether you want to receive e-mail updates, reminders and performance reports.
Select allow your dealer to receive notifications (highly recommended).
Select agree to EULA.
Enter your information and select Next. Enter your country/region, address, city, state, and zip code.
Select Create Account.

Enable Advanced Diagnostics

From your thermostat's home screen, go to Menu > Settings > Dealer Support Services

There are two screens under this section, Service Contact Info and Dealer Support Access. If you wish to allow your service provider direct access for troubleshooting your system, then select the following (highly recommended):
Remote Sharing: “ON” - Allows your Lennox Dealer to remotely evaluate the status of your system to ensure optimal performance.
Advanced Diagnostics & Troubleshooting: “ON/ALWAYS” - You will always give authorization to your Lennox Dealer to troubleshoot your system remotely. “OFF” - You will not give authorization to your Lennox Dealer to troubleshoot your system and address system performance remotely.
Alerts and Notifications: “ON” - Allows your Lennox Dealer to receive updates when your system needs maintenance.
Note: All three options must be toggled on for Advanced Diagnostics & Troubleshooting to function.

Download the Lennox Home App

Search for the “Lennox Smart Thermostat App” in the Apple App Store or on Google Play, and download to your smartphone or tablet.
From your home screen, go to Menu > User Account and enter your credentials.
If you already have an account and are connecting multiple thermostats, select “Existing Account” and use your credentials to connect them.

Key Features and Tools

Knowing the details of a few key features will make both you and your home smarter.

Ask for the current temperature

"Alexa, what is the temperature of (thermostat name)" Alexa will reply with current temperature.

Set your Smart Thermostat to a specific temperature

"Alexa, set (thermostat name) to (75) degrees".

"Alexa, set (thermostat name) temperature to (75)".

"Alexa, set (thermostat name) to (75)".

"Alexa, change temperature to (75)" Alexa will ask you to confirm which device, just say your thermostat's name."

Make it warmer

"Alexa, increase (thermostat name) by (3) degrees".

"Alexa, increase (thermostat name) temperature by (3) degrees".

"Alexa, raise (thermostat name) by (3) degrees".

"Alexa, increase (thermostat name) by (3) degrees".

"Alexa, make (thermostat name) warmer".

Display all systems in the home and select a system
Display all zones in the system and select a zone
Turn system/zone ON/OFF
Change manual modes
Change set-points for each zone/system
Change fan mode

Display all systems in the home and select a system
Display all zones in the system and select a zone
Turn system/zone ON/OFF
Change manual modes
Change set-points for each zone/system
Change fan mode

Once a Control4 smart-home system is installed, perfect air can be controlled through a number of options, not just the Lennox S40 Smart Thermostat and the Lennox Home App. A variety of interfaces are available that place the S40 icons on the main screen. Here is what you can control through your Control4 interfaces:

Make it Cooler

"Alexa, decrease (thermostat name) by (3) degrees"
"Alexa, lower (thermostat name) temperature by (3) degrees"
"Alexa, decrease (thermostat name) temperature by (3) degrees"
"Alexa, lower (thermostat name) temperature".
"Alexa, make (thermostat name) colder".

Ask for thermostat setpoints

"Alexa, what is the (thermostat name) set to?" Alexa will reply with the current thermostat setpoints and the thermostat mode (heat, cool or auto).

Greater control is at your fingertips

When connected to the Lennox S40 Smart Thermostat, homeowners can monitor and control the home's air quality from anywhere using Lennox Home App.

Smart. Inside and out.

Real-time weather tracking meets seamless connectivity and communication. When paired with a ventilation system, it tracks the outdoor stats. If the climate conditions inside are better than what's outside, the Lennox Smart Air Quality Monitor will tell the Lennox S40 Smart Thermostat not to ventilate the home.

Greater range. Greater performance.

The Lennox Wireless Extender improves the connection between the Lennox S40 Smart Thermostat and technologically advanced accessories, such as the Smart Room Sensor and Smart Air Quality Monitor, in larger homes or areas with reduced coverage or "dead spots". This strengthened connection nearly doubles the coverage area and thus enhances reliability, performance, and usability. (sold separately)

More perfect air together.

When your HVAC system includes Healthy Climate indoor air quality products, it can more effectively address the problems it detects. In fact, the Lennox Smart Air Quality Monitor is the only monitor available that enables on-demand ventilation, purification and filtration based on real-time air quality reading.

Perfect air, perfectly monitored.

The Lennox Smart Air Quality Monitor detects and tracks particulates, carbon dioxide and volatile organic compounds (TVOC's) inside the home. When poor quality air is detected, it triggers your system to cycle and clean the air, providing peace of mind that your family is breathing the most healthy, perfect air.

Smart for precision and efficiency

Designed to pair with the Lennox S40 Smart Thermostat as part of a fully communicating home comfort system.

Adjusting the Temperture

Tap your thermostat’s home screen to go to the horseshoe-shaped dial where you can adjust the temperature in either of two ways.

1. Using the Horseshoe Dial

Touch the red circle to adjust the temperature in heating mode and the blue circle to adjust it in cooling mode. If Perfect Temp* is enabled, you’ll see one dial that allows you to set your desired temperature.

2. Tap “Heat To” or “Cool To” Icons

Tap either of the "Heat To" or "Cool To" icons where a detailed horseshoe dial will allow you to select the perfect heating or cooling temperature setpoint.

One-Touch Away Mode

Overrides your regular programming schedule with a single touch and sets back your heating and cooling set points to save energy.

Smart Home Integration

Effortlessly integrates with a range of smart home devices—from premium smart home systems like Control4 to popular virtual assistants like Amazon Alexa and Google Assistant

Smart Away™ Mode

Smart Away™ Mode uses the GPS in your smartphone to detect when you’re leaving, and automatically adjusts the temperature to a more energy-efficient setting. If you or a family member returns home, Smart Away then returns your system to a normal schedule and comfortable temperature.

1. First activate Smart Away on your thermostat.

2. Enable Smart Away on the mobile app. Go to Menu > Settings > Away and turn on "Smart Away".

3. The GPS distance at which Smart Away detects your smartphone is factory set at a 2-mile radius. To change this, press the "+" or "-" buttons under Smart Away Fence.

*For Smart Away to function properly, location services must be enabled on your mobile device.

Schedule IQ™

Combines with Smart Away™ Mode to learn your routine and create an energyoptimizing schedule of operation.*

To enable Schedule IQ, go to Menu > Schedule > Schedule IQ > Edit. You can set your preferred temperature for up to four time periods per day by sliding the blue and red circles along the line on the touchscreen. Add the Lennox Smart Thermostat App to your smart device and your system will automatically adjust the temperature when you’re away, saving energy and money.

*Smart Away must be turned on in order for Schedule IQ to function.