Nest Thermostat Not Working? What NH Homeowners Need to Know About the 2025 Support Shutdown
If you have an older Nest Learning Thermostat, there’s a big change coming that could affect how you manage your heating this winter.
Google recently announced that support for some 1st and 2nd-generation Nest thermostats will end on October 25, 2025. After that, these devices won’t connect to the Nest or Google Home apps anymore.
For New Hampshire homeowners, this could mean losing remote access and smart features just before heating season starts.
Here’s what you should know.
What Is Happening to Older Nest Thermostats?
Google is discontinuing support for:
- 1st generation Nest Learning Thermostat (released 2011)
- 2nd generation Nest Learning Thermostat (released 2012)
- 2nd generation European version
After October 25, 2025:
- The thermostat will no longer connect to WiFi
- Remote control through the Nest or Google Home app will stop working
- Smart features and integrations will no longer function
- The thermostat will still operate manually on the wall
Your heat will still work, but you’ll lose smart control and monitoring features.
How Do I Know If I Have a 1st or 2nd-Generation Nest?
Not sure which model you have? Here are a few ways to find out:
1. Look at the display
Early generation Nest Learning Thermostats have a rotating outer ring and a slightly thicker profile.
2. Check the backplate
You can gently take the thermostat off the wall and check the back for the model number.
3. Check your app (while it still works)
The Nest app may show your device generation under settings.
If you’re not sure, the GSMS team can help you figure out which thermostat you have.
Will My Nest Thermostat Still Heat My Home?
Yes, your thermostat will still work as a basic manual temperature control.
However, you will lose:
- Remote access from your phone
- Smart scheduling
- Energy usage tracking
- System alerts and monitoring
- Integration with other smart home devices
For many New Hampshire homeowners, remote monitoring is especially helpful in winter. Without it, you might miss early signs of heating problems during very cold weather.
Why This Matters for NH Homes
The heating season in New Hampshire can be harsh.
When temperatures drop into the single digits or below zero, smart thermostat alerts can help you:
- Catch system failures early
- Monitor temperature while traveling
- Prevent frozen pipes
- Adjust settings during sudden weather changes
You don’t want to find out your thermostat isn’t connected on the first freezing night.
Upgrading before the October 2025 deadline helps keep your system reliable and connected all winter.
What Are Your Upgrade Options?
If you have a 1st or 2nd generation Nest Learning Thermostat, switching to a newer model will bring back:
- Full app connectivity
- Smart scheduling
- Energy tracking
- Compatibility with Google Home
- Improved energy efficiency features
If you already have:
- 3rd generation Nest Learning Thermostat
- Nest Thermostat E
- Newer generation Nest models
You won’t be affected by this shutdown and can keep using your device as usual.
How GSMS Can Help
At GSMS, we help homeowners across Southern New Hampshire stay comfortable all year.
If your Nest thermostat is affected, we can:
- Confirm your current model
- Recommend the best smart thermostat for your home
- Ensure compatibility with your HVAC system
- Provide professional installation
- Test connectivity and performance
- Integrate it properly with your heating equipment
Upgrading your thermostat is also a good chance to check how your whole system is working before winter.
Do Not Lose Smart Heating Control Before Winter
If you use your Nest thermostat for remote access, scheduling, or energy management, now’s the time to plan your upgrade. Don’t wait until your app disconnects during a cold snap. Call GSMS 603-424-8258 today to schedule your thermostat check and upgrade before the October 25, 2025, deadline.
