- What is the best thermostat to use for my heating system?
- Why should I zone my house?
- What is the best thermostat to use for my heating system?
- How do I set up or create an account?
- How do I add a thermostat to my Account?
- How do I reset my password?
- How do I create a Lennox Smart Thermostat account if I have moved into a home that has already registered the thermostat?
- What information and adjustment settings are displayed on my thermostat screen?
- How do I turn on and setup a Schedule?
- How do I control my Smart Thermostat?
- How do I change the heating or cooling mode?
- How do I change the heating or cooling temperature?
- Any quick navigation tips?
- Can I install the Lennox S40 Smart Thermostat myself?
- What Lennox Equipment is compatible with the S40 Smart Thermostat?
- Where can I purchase an S40 Smart Thermostat?
- What features or advantages does the S40 Smart Thermostat offer?
- Where can I download the Lennox Home App?
- How do I put my home in Away Mode?
- How do I setup Wi-Fi on the S40 Smart Thermostat?
- Where is the menu button? How do I navigate?
- Where and how do I generate a pin number and why do I need one?
- Can I still manage my S40 Smart Thermostat remotely if I do not have a smart phone?
- What are the recommended Wi-Fi routers for use with the S40 Smart Thermostat?
- Can I have my iComfort WiFi, iComfort S30 and S40 Smart Thermostat in the same app?
- How do I start using the Smart Room Sensors?
- How do I add a Smart Room Sensor to my home?
- How many Smart Room Sensors can I use?
- Where do I place my Smart Room Sensors?
- What areas do I need to take into consideration so the Smart Room Sensor capabilities are not affected?
- What kind of power does the Smart Room Sensor run on?
- How far can a Smart Room Sensor be from the S40 Smart Thermostat?
- What happens when my Smart Room Sensor has low signal strength?
- What is the best location that will maximize the area of detection in a room for effective occupancy detection?
- Can I paint the Smart Room Sensor?
- Can I hide the S40 Smart Thermostat in a closet and use the Smart Room Sensor as my primary thermostat?
- Is periodic calibration of the Smart Room Sensor needed?
- How do I replace a Smart Room Sensor in my home?
- Can I change the name of my Smart Room Sensor?
- Can I pair multiple Smart Room Sensors at the same time?
- Can I use the Smart Room Sensor with a zoned HVAC system?
- How many Wireless Extenders can I use?
- Where do I place my Wireless Extender?
- How far can a Wireless Extender be from the S40 Smart Thermostat?
- Can I paint the Wireless Extender?
- Can I create my own BLE (Bluetooth Low Energy) Mesh network?
- How do I add a Wireless Extender to my home?
- Can I change the name of my Wireless Extender?
- Can I pair multiple Wireless Extenders at the same time?
- How many Wireless Extenders can I have in my home?
- Is periodic calibration of the Wireless Extender needed?
- What is the difference between calendar and run-time in reminder settings?
- How do I adjust the humidity setpoint?
- What are all the different humidification modes and what do they do?
- How does the Smart Thermostat know when to dehumidify or humidify?
FREQUENTLY ASKED QUESTIONS
Perfect comfort is something we want you to experience long after you’ve purchased your Lennox® product. That’s why we offer a collection of resources that make it as easy as possible for you to get the answers and support you need.


