To manually change Date/Time options, the S40 Thermostat must be disconnected from Wi-Fi. To do this, go to Menu > System Settings > Wi-Fi and slide Wi-Fi to OFF. Press the Home button to return to the main screen. Now go to Menu > Display Settings > Date & Time > Select Set Time or Set Date to make changes.
Remember to re-enable the Wi-Fi by going to Menu > System Settings > Wi-Fi and slide Wi-Fi to ON. Press the Home button to return to the main screen. The manual changes will be saved.
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.


