When you pop off the top piece on the backside there is a QR bar code to
scan and if that won't work below that is a series of letters and that
is the access code you need. It should work if you enter it.
You should be able to go in to the Google Home App and it should show
you the Wayne's World and the other one and you just need to click on
the one you want to change or delete. The settings is on the upper
right. I am new to this so I hope I gave yo...
You can find the code on the thermostat or you can scan the bar code.
Just pop off the face of the thermostat and it will be on the backside.
I would remove the device from the Google Home app and then go through
and set it up again. That should work...