Your Vivint Smart Thermostat will save money and energy when you make the most of its scheduling options and remote access via your smartphone or tablet. Set Heating & Cooling Schedules Enable the Auto-Fan Off Feature Change the Temperature Display Unit Turn the Touch Tone On/Off Lock your Vivint Smart Thermostat Set the Swing Temperature Adjusting your Thermostat HVAC Settings Thermostat Not Visible On App/Online Heat Pump Not Functioning Properly What do I do if the temperature on my thermostat is reading Celsius when it should be reading Fahrenheit (or vice versa)? What do I do if my schedules aren’t working? What do I do if the calibration on my thermostat seems off? Are there any preset schedules available to me? What do I do if my thermostat screen is blank? What do I do if the temperature isn't updating correctly? What do I do if my fan won’t turn off? My thermostat changes target temperature autonomously.