You may need to unregister your thermostat from your account because you’re moving and leaving the thermostat behind or just replacing it with a new one.
To unregister your ecobee3 lite thermostat from your ecobee account:
- Log into your web portal account
- Click on the Menu icon in the top right corner.
- Click on UNREGISTER THERMOSTAT.
- Select the thermostat you want to unregister by clicking on the checkbox.
- Click on Unregister.
- If you only have one thermostat registered on this account, it will prompt you with a warning message. To continue with unregistering your ecobee, click on Delete Account.