I've linked a help centre article below that will help you troubleshoot this. Do let us know what happens when you try these steps? Try to be as detailed as possible so we know how best to advise.
I have disconnected my router , restarted my thermostat, disconnected from my Google Home app but one of my thermostats will now not connect to WiFi..it shows on the dial that WiFi is being received?....Help
In addition after deleting the device, when I scan the QR code and input my Code on the back in "Setup" to get it to join my household, it will not "find" the thermostat ? What do I do??
