What happens to the Alarm.com Smart Thermostat HD (ADC-T40K-HD) after a power loss?

When the Alarm.com Smart Thermostat HD (ADC-T40K-HD) loses power, the configuration, current set point, and current mode will remain preserved. 

The thermostat should resume normal operation based on those settings once power is restored. If operation does not resume upon the restoral of power, contact CORE Technical Support.