If you see the message "Blocked Registration" when trying to register your Thermostat, it means the device is already registered to another account and the current owner has enabled Blocked Registration to prevent it from being registered elsewhere.
To resolve this:
If you know the previous owner, ask them to either:
Allow the Thermostat to be transferred by going to Setup → Transfer / Remove / Sell Unit.
If you have recently purchased the Thermostat, your installer may have registered it during installation. Please contact your installer and ask them to transfer the Thermostat to your email address.
If you are unable to contact the previous owner or installer, please email [email protected] for further assistance. You may be asked to provide proof of ownership before we can help.