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.
The correct app for the s40 thermostat is the lennox smart thermostat app. this app is available for download in the itunes app store and google play. please ensure you are downloading the correct app for your s40 thermostat as it is different from the app used for the s30 thermostat.
For more information or a visual representation of steps please reference our user guide here
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