Thermostat is a 3rd generation learning thermostat with a previously connected remote sensor. While trying to solve an issue with "home/away assist," I managed to disconnect the thermostat from the app. I tried following the steps the last time I had an issue with a remote sensor to no avail. I then uninstalled the app, restarted the phone, and reinstalled the app. Still no success following the same steps. I then found a series of posts that incorporated removing the remote sensor battery for 5 minutes. Still no luck. Here are the steps I followed.
1. (from the app) Settings > Remove thermostat
2. (at thermostat) > Settings > Reset (rightmost option) > Restart
3. Remove battery from the remote sensor (must be out at least 5 minutes)
4. (at thermostat) Settings > Nest App > Reset Connection > Reset
5. (at thermostat) Settings > Nest App > QR Code
6. (from app) Add Product > Scan thermostat QR code from previous step > wait several minutes > select "Already Installed" > connect to wifi . select name for thermostat, select safety temperatures , etc.
Thermostat is now connected to the app and can be controlled from the app
7. (from app) Settings > Add product > Scan QR code of remote sensor on the inside cover
8. Reinstall battery in remote sensor
9. After introduction to the remote sensor, click "Next"
At this point, I get an error message of "Something went wrong." For pairing, the sensor is less than 4 feet from the thermostat, so moving it closer does nothing. If I hit 'try again', the error message re-appears in a fraction of a second.
HELP ! I am at a loss as to what else I can try. Very frustrating.
Moderator edit: Subject updated for clarity and findability.
