What if someone is home and I leave the house with Smart Away turned on?
FAQ , Thermostats , Troubleshooting Modified: March 19, 2026
Smart Away works with multiple users in the same household, as long as they have a smart phone/tablet with the Lennox S40 Thermostat App and participation is turned on. Once all participating mobile devices have moved outside the transition range, the thermostat will set the temperature back to save energy. If you leave the house and someone is still home without the Smart Away app, then they can simply turn off Smart Away from the thermostat.
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