In the event you see the ERROR message, the serial number may be linked to another account.
- It is possible you are trying to register a controller that the contractor installed and put into their own account.
- It is possible the contractor used a different email for you or they got the email wrong. Verify correct email was used with contractor.
- The serial number might be linked to the original homeowner.
If the contractor needs to release the serial number, information can be found here.