I have been using my Trane XL 950 thermostat for the past 8 years but it was recently deprecated. It had gotten to the point it would not stay paired to my WiFi and I was rebooting two or three times a day. I had it connected to the Hubitat and was using an app (Nexia Thermostat Manager) and it worked perfectly. It showed up on my iPhone with HomeKit and that worked as well.
I replaced the XL950 with a new XL850. I manage to get the new one connected to Hubitat and it is working. I deleted the old one from HomeKit on my phone and enabled the new one under the integration app but it is not showing up on my phone. I followed the instructions and have tried everything except the “Nuclear Option” resetting integration. I really hate to have to recreate everything so am wondering if anyone has a suggestion before I press the big red button (resetting integration).