- 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?
- ComfortSense® 5500 & 3000 FAQ – Now Replaced by L40
- S30 & iComfort Wi-Fi® FAQ – Now Replaced by S40
- ComfortSense® 7500 FAQ – Now Replaced by M30
- Is periodic calibration of the Wireless Extender needed?
- How many Wireless Extenders can I have in my home?
- Can I pair multiple Wireless Extenders at the same time?
- Can I change the name of my Wireless Extender?
- How do I add a Wireless Extender to my home?
- Can I create my own BLE (Bluetooth Low Energy) Mesh network?
- Can I paint the Wireless Extender?
- How far can a Wireless Extender be from the S40 Smart Thermostat?
- Where do I place my Wireless Extender?
- How many Wireless Extenders can I use?
- Can I use the Smart Room Sensor with a zoned HVAC system?
- Can I pair multiple Smart Room Sensors at the same time?
- What if someone is home and I leave the house with Smart Away turned on?
- Can I change the name of my Smart Room Sensor?
- How do I replace a Smart Room Sensor in my home?
- Is periodic calibration of the Smart Room Sensor needed?
- Can I hide the S40 Smart Thermostat in a closet and use the Smart Room Sensor as my primary thermostat?
- Can I paint the Smart Room Sensor?
- What is the best location that will maximize the area of detection in a room for effective occupancy detection?
- What happens when my Smart Room Sensor has low signal strength?
- How far can a Smart Room Sensor be from the S40 Smart Thermostat?
- What kind of power does the Smart Room Sensor run on?
- 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?
- How many Smart Room Sensors can I use?
- How do I add a Smart Room Sensor to my home?
- How do I start using the Smart Room Sensors?
- Can I still manage my S40 Smart Thermostat remotely if I do not have a smart phone?
- Can I have my iComfort WiFi, iComfort S30 and S40 Smart Thermostat in the same app?
- What is Smart Away™ and how does it work?
- How do I set up or create an account?
- How do I add a thermostat to my Account?
- How do I create a Lennox Smart Thermostat account if I have moved into a home that has already registered the thermostat?
- How do I reset my password?
- How do I turn on and setup a Schedule?
- What information and adjustment settings are displayed on my thermostat screen?
- Where and how do I generate a pin number and why do I need one?
- Where is the menu button? How do I navigate?
- What are the recommended Wi-Fi routers for use with the S40 Smart Thermostat?
- How do I setup Wi-Fi on the S40 Smart Thermostat?
- How do I put my home in Away Mode?
- Where can I download the Lennox Home App?
- What features or advantages does the S40 Smart Thermostat offer?
- Where can I purchase an S40 Smart Thermostat?
- What Lennox Equipment is compatible with the S40 Smart Thermostat?
- Can I install the Lennox S40 Smart Thermostat myself?
- Any quick navigation tips?
- How do I change the heating or cooling temperature?
- How do I change the heating or cooling mode?
- How do I control my Smart Thermostat?
- What is a geofence and does it work with multiple people in the house?
- What is Away Mode?
- Why should I allow Remote Sharing for my dealer?
- What is the difference between Remote Sharing, Advanced Diagnostics & Troubleshooting and Alerts & Notifications?
- How do I change my Advanced Diagnostics and Remote Sharing feature?
- How do I set a schedule or program?
- How do I edit a schedule?
- Why and how is Schedule IQ different than Winter, Summer, Spring/Fall, and Save Energy schedules?
- Why does my Lennox S40 Smart Thermostat say, "Transitioning to Next Schedule"?
- Are schedule changes applied to other systems?
- How do I configure a traditional schedule?
- What is Schedule IQ and how does it work?
- What does Schedule Hold mean?
- What happens if I cancel schedule hold?
- Where does the outdoor temperature displayed on my Smart Thermostat come from?
- Why does my Smart Thermostat say Defrosting?
- Where is the weather data coming from?
- What is Feels Like and how does it work?
- What is Perfect Temp and what are its advantages?
- If I am leaving my home for an extended period of time, how do I increase the setpoint range?
- What are low and high balance points?
- Will I get notified when it is time to replace the filter?
- 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?
- What is Climate IQ?
- What is Dew Point?
- What does the lock icon on my S40 Smart Thermostat mean?
- How do I prevent my kids from messing with the S40 Smart Thermostat?
- What are my fan options? Where do I change the fan mode?
- How do I change my login or email address?
- How do I stop getting Lennox S40 Smart Thermostat notification emails?
- How do I change information in my profile or account?
- What does Move Out under account do?
- How do I add a new Lennox S40 Smart Thermostat to my existing account?
- How do I set or change my home location?
- What do the different notification colors mean?
- What does the Remove Home button do?
- Where are the display settings?
- What are my S40 Smart Thermostat screen saver options?
- How do I change from Fahrenheit (°F) to Celsius (°C)?
- How do I change the language in my S40 Smart Thermostat?
- How do I change the date & time in my S40 Smart Thermostat?
- What is a zone?
- How do I change zone settings?
- What is a system?
- What is the difference between a system and a zone?
- What is Lennox Smart Zoning System zoning?
- How do I change the system's name?
- How do I change my home's name?
- How do I add a home?
- How do I add or change the zone name?
- What is Allergen Defender?
- What is Ambient Lockout?
- What does coasting mean?
- What is the difference between Emergency Heat and Auxiliary Heat?
- What is Auxiliary Heat and where do I turn it on?
- What is Emergency Heat, and where do I turn it on?
- What is Load Shedding?
- What is Safety Protection?
- Can I be alerted if the house gets too cold or too hot?
- How hard is my system working?
- How do I unsubscribe from receiving email alerts?
- How do I unlock the Lennox S40 Smart Thermostat display?
- Where did the menu button go?
- Why are setting changes not being applied?
- How can I troubleshoot or diagnose what is wrong with my system?
- What are alerts and notifications and what do they mean?
- How do I restart or reset my Lennox S40 Smart Thermostat display?
- Where do I find the Thermostat software version and model number?
- I accidentally pressed "Remove Home". What do I do now?
- What is the Dealer Support Center under Advanced Settings?
- How can I update the software in the Lennox S40 Smart Thermostat?
- What does a one stage system mean?
- What is two-stage cooling?
- What is variable speed technology and how does it apply to air conditioners?
- How hard is my system working? What is demand?
- What is runtime?
- Why does cooling or heating demand change from month to month?
- What can I do to reduce cooling or heating demand?
- How do I turn on/off the monthly performance report email?
- What causes the "Outdoor Temperature data not available" message?
- Can I use the Lennox Wireless Extender to increase the Bluetooth signal for other non-Lennox Bluetooth devices?
- I have a Zoning system, but when I go to edit the Summer schedule for Zone 1, the changes are listed in the Summer schedules for the other zones. Why can't I edit schedules independently in a zoning system?
- How do I manually set the Date/Time and related options like Time Zone and DST?
- How do I view the status of my Smart Air Quality Monitor and Smart Room Sensors?
- I am having problems entering schedule events. How do I fix this?
- I notice that the outdoor weather and forecast is not appearing in the lower left corner of the display
- Can I use emojis in the Wi-Fi network name?
- Why does my S40 display random symbols and characters in the device name?
- Where can I download the Lennox Home App?
- Which mobile devices work with my S40 Smart Thermostat and app?
- What does this alert or notification mean?
- What is runtime?
- How hard is my system working?
- How do I access my S40 Performance Report?
- How do I turn off the monthly performance report email?
- What can I do to reduce cooling or heating demand?
- What is in my monthly performance report email?
- Why does cooling or heating demand change from month to month?
- How do I enable Matter on my thermostat?
- How does the Smart Room Sensor work?
- What is Sensor Temperature Difference Limit?
- What information is the Smart Room Sensor collecting?
- How often does the Smart Room Sensor send data?
- What is the distance for the occupancy sensing capabilities of the Smart Room Sensor?
- Are there different methods the Smart Room Sensor does room temperature averaging?
- Will the Smart Room Sensors give me precise temperature inside each room they are placed?
- Is adding Smart Room Sensors the same as zoning?
- How does the Smart Room Sensor work if it is not tied to ductwork?
- How do I cycle power for troubleshooting?
- Can I create my own BLE Mesh network?
- Can I add or remove Smart Room Sensors on my own?
- How do I remove a Smart Room Sensor in my home?
- There are some colored lights on my Smart Room Sensor, what do they mean?
- Why does my S40 display random symbols and characters in the device name?
- How does the Wireless Extender work?
- What kind of power does the Wireless Extender run on?
- What is the range of the BLE (Bluetooth Low Energy) network)?
- What happens when my Wireless Extender is out of range?
- Can I add or remove Wireless Extenders on my own?
- How do I replace a Wireless Extender in my home?
- How do I remove a Wireless Extender in my home?
- How do I cycle power for troubleshooting?
- There are some colored lights on my Wireless Extender, what do they mean?
- Why does my S40 display random symbols and characters in the device name?
- How do i unregister my icomfort wi-fi thermostat from one email address to register it to a different email address?
- Where can a humidity sensor be located if not in the thermostat?
- Where is the humidity sensor for a system that has a s30 thermostat?
- Where is a humidity sensor if it is not located within the thermostat?
- Where can i find the mac address on the icomfort wifi thermostat?
- Where can i find the ip address on the icomfort wifi thermostat?
- How to connect a room sensor to the s40 thermostat?
- Connecting bluetooth room sensor to s40 thermostat?
- How to register the icomfort wifi thermostat?
- How to generate a pin on the m30 thermostat?
- How to unregister the icomfort wi-fi thermostat?
- How to generate a pin on the m30 thermostat?
- Thermostats tab: what is alert code 200? the results were returned in 12.39 seconds.
- Thermostat tab: how do i change the email that my s40 is registered to? the results were returned in 24.55 seconds.
- How can i make my thermostat display the inside temperature all the time?
- Thermostat tab: what does the red light on the smart hub indicate? the results were return in 17.58 seconds.
- Thermostat tab: do i have to register the s40 thermostat to use it? results returned in 24.12 seconds
- Do i have to register the s40 thermostat to use it?
- Thermostat tab: does my s40 have to be connected to wifi for me to connect to alexa? results returned in 20.69 seconds.
- How to grant dealer access for the s30 thermostat? results returned in 27.62 seconds.
- Does the m30 thermostat show the weather forecast? results returned in 23.14 seconds
- How do i add a thermostat to my account? results returned in 32.39 seconds.
- How to restart an m30 thermostat? results returned in 21.46 seconds
- How much voltage does a thermostat need to work properly?
- How can i pair my s40 thermostat with apple homekit?
- What does error code 291 mean on a thermostat?
- How do i restart my icomfort wi-fi thermostat?
- Is the m30 thermostat supposed to make a clicking sound
- How do i connect a sensor to my s40 thermostat?
- How many sensors can i add to one s40 thermostat?
- How can i restart an s40 if the thermostat is black?
- What is the correct app for the s40 thermostat?
- Can the s40 thermostat program the fan to continuously run?
- Rephrased question to can you restart the s40 thermostat from the s40 mobile app?
- How to get rid of the thermostat cannot communicate with the smarthub message.
- What thermostats are compatible with the alexa skill?
- How do i set up the alexa skill on my s30 thermostat?
- How do you change the time zone on an s30 thermostat?
- Who can perform a factory reset on the thermostat?
- Why is my emergency heat light on, but my thermostat is not set for emergency heat?
- How do you get rid of a locked screen on a comfort sense thermostat?
- Re-test: can i use a nest thermostat with my lennox equipment?
- How do i turn off the fan on an s30 thermostat?
- How to get the serial number for an s30 thermostat?
- How to adjust the humidity level on a icomfort wifi thermostat?
- The wifi connection on my s30 stat keeps timing out when trying to turn it on
- Re-tested by palani how to do a restart to an m30 thermostat
- Why is the m30 thermostat cooling the home lower than the desired set point?
- How to set a zone schedule on an s40 thermostat?
- Can an air discharge sensor be paired with an s40 thermostat?
- How can i unregister an icomfort wifi thermostat?
- How to change the fan relay speed on an s40 thermostat?
- How do i connect my s40 to google assistant?
- What does the s40 show up as on the google assistant app
- Why does s40 show an ambient temperature that is not the actual temperature in the home?
- s40-showing-to-be-3-or-4-degrees-off-from-what-the-temperature-is-in-the-home-based-on-a-different-thermometer-in-the-home.
- How to connect the s40 to the server?
- can-my-s40-humidify-my-home-if-i-dont-have-a-humidifier-attached-to-the-hvac-system-results-returned-in-17-31-seconds
- Can i use different schedules on my s40 at the same time if my system is zoned? results returned in 30.79 seconds.
- Does the s40 have a web portal?
- Does the s40 have the alexa skill?
- Is there a specific website to log into for the s40?
- Is the s40 smart room sensor wireless?
- What is the difference between e30 and the s30? results returned in 29.49 seconds.
- How to turn on accuweather on the s30? results returned in 37.44 seconds.
- Can the s30 be paired with non communicating equipment? results returned in 39.64 seconds.
- Does the s30 have smooth setback recovery?
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.
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