02-21-2026 03:21 PM
I upgraded my Nest due to the abandonment of support for my last Nest.
Install was easy and I took advantage of the Sensor that came with it. Recently though, the sensor fell offline so I proceeded to reconnect it back into the system. For some reason it has been an uphill battle. I’ve basically reset everything including the apps, the thermostat as well as replaced the 3volt battery in the sensor. Thermostat is up and running but the Sensor is not working although the thermostat continues to tell me that the sensor battery is low. I thought that maybe resetting everything would clear any memory but I’m getting the same warning even with the new battery. BTW, I did double check the voltage on the new battery and it’s 3,54 volts.
Any tips from you Masterminds? Thanks
02-21-2026 04:33 PM
After taking a break and rereading all of the helpful information in this community group and elsewhere, I gave it the old community college try and even though the Google Home app said no dice, there it was, the little sensor that could. Let’s see how long it lasts.
02-24-2026 07:24 AM - edited 02-25-2026 05:46 AM
Hi pejkeenan,
Thank you for getting in touch with the community! I understand that the sensor in your Nest Learning Thermostat fell offline. You found the process to fix the issue challenging; however, you didn’t give up, and by following advice from the community, you were able to complete the sensor connection to the Google Home app.
I appreciate the time and effort you dedicated to researching and troubleshooting the issue, and I’m glad to hear that you managed to correct the situation.
For any assistance or clarifications, please don’t hesitate to contact me.
Regards,
Humberto