How do I stop getting Lennox S40 Smart Thermostat notification emails?
FAQ , Thermostats , Troubleshooting Modified: March 19, 2026
When you create a Lennox Smart Thermostat account, you're asked to check a box if you wish to receive email updates, meaning alerts and reminders via email. You can always change this setting again under Menu > User Account > Email > Email Updates
Find a Local Pro
Enter your zip code to find a Lennox® dealer near you for service, support, or installation.