About Lennox Home
The Lennox Home App allows you to remotely access and control your Lennox Smart Thermostat, Lennox powered by Samsung Mini-split, Lennox Heat pump Water Heater and advanced accessories from anywhere in the world. Whether...
The Lennox Home App allows you to remotely access and control your Lennox Smart Thermostat, Lennox powered by Samsung Mini-split, Lennox Heat pump Water Heater and advanced accessories from anywhere in the world. Whether it’s adjusting your home’s temperature or schedule, monitoring your indoor air quality (Lennox Air Quality Monitor required) or balancing room temperatures, the control is all at your fingertips. You must own a Lennox Smart Thermostat (S40/L40/M40/E40, S30/E30/M30), Lennox powered by Samsung Mini-split, or Lennox Water Heater to use this app. The Lennox Smart Thermostat, Lennox powered by Samsung Mini-split, or Lennox Water Heater must also be connected to your home’s Wi-Fi router before the app can control the settings. For more information go to https://www.lennoxsmartertogether.com/help/index.html or https://www.lennox.com/residential/products/heating-cooling/mini-split-systems We truly appreciate your questions and comments. Please keep sending your suggestions to consumeraffairssocial@lennoxind.com or @AskDaveLennox on Twitter
Version History We've been listening. Here's what's new: • Fixed: app crash affecting certain iOS devices. 4.70.0123 Aug 12 We've been listening. Here's what's new: • Your outdoor temperature is now visible right on the home screen. • Performance and connectivity improvements for a more reliable experience. 4.70.0119 Jul 24 Improved VoiceOver support for adjusting temperature set points and system modes. 4.60.0109 May 14 • Added support for the new E40 Thermostat • S40 & E40 owners can set up Smart Room Sensors and Indoor Air Quality Monitor directly in this app – no technician/additional app required • Swipe to switch between zones and systems • Quick access to Mode from the home screen • Updated system menu to highlight the selected system • Bug fixes 4.60.0106 Mar 27 This release introduces support for the Lennox M40 Thermostat and for Lennox heat pump Water Heaters. This release also provides bug fixes and other improvements. 4.60.0100 Mar 13 This release includes performance enhancements and bug fixes to ensure a smoother and more reliable experience. 4.38.0512 12/16/2025 Integration and control of Lennox Powered by Samsung Mini-split system-now available in your Lennox Home App 4.38.0507 12/02/2025 This release includes performance enhancements and bug fixes to ensure a smoother and more reliable experience. 4.38.0022 10/21/2025 This release includes performance enhancements and bug fixes to ensure a smoother and more reliable experience. 4.35.0508 06/10/2025 • Improved in-app instructions to locate the PIN generation feature on S30, E30, and M30 thermostats • Increased password character limit to 50 characters for better login compatibility 4.35.0505 04/10/2025 * Added Support for S30, E30, M30 Smart Thermostats along with existing S40 and L40. * Bug Fixes. 4.35.0504 04/08/2025 Bug Fixes 4.33.098 02/15/2025 * Added support for L40 thermostat along with S40 thermostats. * Bug fixes and Improvements. 4.33.094 02/03/2025 We’ve added updates to enhance performance, reliability, and compatibility with the latest HVAC systems. Enjoy seamless comfort and peace of mind knowing your system is always up to date. 4.31.533 12/18/2024 For this release Lennox has included Low Global Warming Potential (GWP) refrigerant detection notifications along with general bug fixes. 4.31.532 11/14/2024 At Lennox, we are continuously improving our products to better support your needs. For this release, we upgraded the security for Face ID and Touch ID and improved the Smart Away feature while fixing some minor bugs. 4.27.129 02/05/2024 * Supports iOS 17 Release * Bug Fixes 4.26 09/15/2023 - Temporary Advanced Diagnostics allows you to grant access to your Lennox Dealer for 24 Hours so they can remotely conduct diagnostic tests and arrive at your house with the correct parts to service your unit. - Bug Fixes 4.25 08/29/2023 * Step-by-step onboarding process streamlines thermostat setup and allows you to easily customize the features of your Lennox S40 Smart Thermostat * Sleep Mode allows the Smart Room Sensors placed in your bedroom to override the presets on your Lennox S40 Smart Thermostat during a scheduled time window, ensuring you get the perfect nighttime air you need for a comfortable sleep. * Bug Fixes We are actively working on fixing bugs and performance issues. Be sure to enable automatic updates for your app settings so you don’t miss anything. 4.20.246 06/03/2023 * Support for Apple iPads * Bug Fixes We are actively working on fixing bugs and performance issues. Be sure to enable automatic updates for your app settings so you don’t miss anything. 4.15.217 04/07/2023 This release includes bug fixes and improvements. 4.10.187 12/19/2022 4.0 11/03/2022
Previous Versions
Here you can find the changelog of Lennox Home since it was posted on our website on 2023-06-22 17:01:23.
The latest version is 4.70.0123 and it was updated on 2026-10-15 17:41:13. See below the changes in each version.
Lennox Home version 4.70.0123
Updated At: 2026-10-15
Changes: Version History We've been listening. Here's what's new:
• Fixed: app crash affecting certain iOS devices. 4.70.0123 Aug 12 We've been listening. Here's what's new:
• Your outdoor temperature is now visible right on the home screen.
• Performance and connectivity improvements for a more reliable experience. 4.70.0119 Jul 24 Improved VoiceOver support for adjusting temperature set points and system modes. 4.60.0109 May 14 • Added support for the new E40 Thermostat
• S40 & E40 owners can set up Smart Room Sensors and Indoor Air Quality Monitor directly in this app – no technician/additional app required
• Swipe to switch between zones and systems
• Quick access to Mode from the home screen
• Updated system menu to highlight the selected system
• Bug fixes 4.60.0106 Mar 27 This release introduces support for the Lennox M40 Thermostat and for Lennox heat pump Water Heaters. This release also provides bug fixes and other improvements. 4.60.0100 Mar 13 This release includes performance enhancements and bug fixes to ensure a smoother and more reliable experience. 4.38.0512 12/16/2025 Integration and control of Lennox Powered by Samsung Mini-split system-now available in your Lennox Home App 4.38.0507 12/02/2025 This release includes performance enhancements and bug fixes to ensure a smoother and more reliable experience. 4.38.0022 10/21/2025 This release includes performance enhancements and bug fixes to ensure a smoother and more reliable experience. 4.35.0508 06/10/2025 • Improved in-app instructions to locate the PIN generation feature on S30, E30, and M30 thermostats
• Increased password character limit to 50 characters for better login compatibility 4.35.0505 04/10/2025 * Added Support for S30, E30, M30 Smart Thermostats along with existing S40 and L40.
* Bug Fixes. 4.35.0504 04/08/2025 Bug Fixes 4.33.098 02/15/2025 * Added support for L40 thermostat along with S40 thermostats.
* Bug fixes and Improvements. 4.33.094 02/03/2025 We’ve added updates to enhance performance, reliability, and compatibility with the latest HVAC systems. Enjoy seamless comfort and peace of mind knowing your system is always up to date. 4.31.533 12/18/2024 For this release Lennox has included Low Global Warming Potential (GWP) refrigerant detection notifications along with general bug fixes. 4.31.532 11/14/2024 At Lennox, we are continuously improving our products to better support your needs. For this release, we upgraded the security for Face ID and Touch ID and improved the Smart Away feature while fixing some minor bugs. 4.27.129 02/05/2024 * Supports iOS 17 Release
* Bug Fixes 4.26 09/15/2023 - Temporary Advanced Diagnostics allows you to grant access to your Lennox Dealer for 24 Hours so they can remotely conduct diagnostic tests and arrive at your house with the correct parts to service your unit.
- Bug Fixes 4.25 08/29/2023 * Step-by-step onboarding process streamlines thermostat setup and allows you to easily customize the features of your Lennox S40 Smart Thermostat
* Sleep Mode allows the Smart Room Sensors placed in your bedroom to override the presets on your Lennox S40 Smart Thermostat during a scheduled time window, ensuring you get the perfect nighttime air you need for a comfortable sleep.
* Bug Fixes
We are actively working on fixing bugs and performance issues. Be sure to enable automatic updates for your app settings so you don’t miss anything. 4.20.246 06/03/2023 * Support for Apple iPads
* Bug Fixes
We are actively working on fixing bugs and performance issues. Be sure to enable automatic updates for your app settings so you don’t miss anything. 4.15.217 04/07/2023 This release includes bug fixes and improvements. 4.10.187 12/19/2022 4.0 11/03/2022
Lennox Home version 4.60.0109
Updated At: 2026-07-23
Changes: Version History Improved VoiceOver support for adjusting temperature set points and system modes. 4.60.0109 May 14 • Added support for the new E40 Thermostat
• S40 & E40 owners can set up Smart Room Sensors and Indoor Air Quality Monitor directly in this app – no technician/additional app required
• Swipe to switch between zones and systems
• Quick access to Mode from the home screen
• Updated system menu to highlight the selected system
• Bug fixes 4.60.0106 Mar 27 This release introduces support for the Lennox M40 Thermostat and for Lennox heat pump Water Heaters. This release also provides bug fixes and other improvements. 4.60.0100 Mar 13 This release includes performance enhancements and bug fixes to ensure a smoother and more reliable experience. 4.38.0512 12/16/2025 Integration and control of Lennox Powered by Samsung Mini-split system-now available in your Lennox Home App 4.38.0507 12/02/2025 This release includes performance enhancements and bug fixes to ensure a smoother and more reliable experience. 4.38.0022 10/21/2025 This release includes performance enhancements and bug fixes to ensure a smoother and more reliable experience. 4.35.0508 06/10/2025 • Improved in-app instructions to locate the PIN generation feature on S30, E30, and M30 thermostats
• Increased password character limit to 50 characters for better login compatibility 4.35.0505 04/10/2025 * Added Support for S30, E30, M30 Smart Thermostats along with existing S40 and L40.
* Bug Fixes. 4.35.0504 04/08/2025 Bug Fixes 4.33.098 02/15/2025 * Added support for L40 thermostat along with S40 thermostats.
* Bug fixes and Improvements. 4.33.094 02/03/2025 We’ve added updates to enhance performance, reliability, and compatibility with the latest HVAC systems. Enjoy seamless comfort and peace of mind knowing your system is always up to date. 4.31.533 12/18/2024 For this release Lennox has included Low Global Warming Potential (GWP) refrigerant detection notifications along with general bug fixes. 4.31.532 11/14/2024 At Lennox, we are continuously improving our products to better support your needs. For this release, we upgraded the security for Face ID and Touch ID and improved the Smart Away feature while fixing some minor bugs. 4.27.129 02/05/2024 * Supports iOS 17 Release
* Bug Fixes 4.26 09/15/2023 - Temporary Advanced Diagnostics allows you to grant access to your Lennox Dealer for 24 Hours so they can remotely conduct diagnostic tests and arrive at your house with the correct parts to service your unit.
- Bug Fixes 4.25 08/29/2023 * Step-by-step onboarding process streamlines thermostat setup and allows you to easily customize the features of your Lennox S40 Smart Thermostat
* Sleep Mode allows the Smart Room Sensors placed in your bedroom to override the presets on your Lennox S40 Smart Thermostat during a scheduled time window, ensuring you get the perfect nighttime air you need for a comfortable sleep.
* Bug Fixes
We are actively working on fixing bugs and performance issues. Be sure to enable automatic updates for your app settings so you don’t miss anything. 4.20.246 06/03/2023 * Support for Apple iPads
* Bug Fixes
We are actively working on fixing bugs and performance issues. Be sure to enable automatic updates for your app settings so you don’t miss anything. 4.15.217 04/07/2023 This release includes bug fixes and improvements. 4.10.187 12/19/2022 4.0 11/03/2022
Lennox Home version 4.38.0512
Updated At: 2025-12-16
Changes: This release includes performance enhancements and bug fixes to ensure a smoother and more reliable experience.
Lennox Home version 4.35.0508
Updated At: 2025-06-10
Changes: Jun 10, 2025
Version 4.35.0508
This release includes performance enhancements and bug fixes to ensure a smoother and more reliable experience.
Lennox Home version 4.35.0505
Updated At: 2025-04-10
Changes: Apr 10, 2025
Version 4.35.0505
• Improved in-app instructions to locate the PIN generation feature on S30, E30, and M30 thermostats
• Increased password character limit to 50 characters for better login compatibility
Lennox Home version 4.35.0504
Updated At: 2025-04-08
Changes: Apr 8, 2025
Version 4.35.0504
* Added Support for S30, E30, M30 Smart Thermostats along with existing S40 and L40.
* Bug Fixes.
Lennox Home version 4.33.098
Updated At: 2025-02-15
Changes: Feb 15, 2025
Version 4.33.098
Bug Fixes
Lennox Home version 4.33.094
Updated At: 2025-02-03
Changes: Feb 3, 2025
Version 4.33.094
* Added support for L40 thermostat along with S40 thermostats.
* Bug fixes and Improvements.
Lennox Home version 4.31.533
Updated At: 2024-12-18
Changes: Dec 18, 2024
Version 4.31.533
We’ve added updates to enhance performance, reliability, and compatibility with the latest HVAC systems. Enjoy seamless comfort and peace of mind knowing your system is always up to date.
Lennox Home version 4.31.532
Updated At: 2024-11-14
Changes: Nov 14, 2024
Version 4.31.532
For this release Lennox has included Low Global Warming Potential (GWP) refrigerant detection notifications along with general bug fixes.
Disclaimer
Official App Store Link
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