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.

How do I replace a Smart Room Sensor in my home?

To replace an already installed device from the Lennox S40 Smart Thermostat, use the following procedure:

  1.  On the Lennox Home App: Go to Menu > Settings > Smart Devices.
  2.  Select the Smart Room Sensor to replace and follow the screen prompts.
  3.  If you wish to reuse the device you replaced in the future, perform a factory reset on the device.

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