I've been having my ecobee constantly drop from my Lovelace UI. Replacing the card and rebooting HASS / Pi doesn't fix it. I have to remove the integration, remove HA from the
Tricking an Ecobee Thermostat to Wirelessly Control Mini Split Unit Without Any Wiring
Ecobee api auth changes effective Dec 1 · Issue #40995 · home-assistant/core · GitHub
ecobee API
ecobee API
How to Configure Ecobee Thermostat in Home Assistant - Smart Home Pursuits