🔄 Try this first — Press and hold the thermostat ring for about 10 seconds until the screen turns off, then release to restart it. Also check your boiler is switched on and your router is working.

Is your Nest Learning Thermostat showing as offline in the app and not responding to remote control? Here are the checks you can safely carry out before contacting support.

What This Problem Means

Your thermostat has lost its connection to the internet. It will usually continue to control your heating using its last known schedule, but you will not be able to control it remotely or see its status in the app until it reconnects.

Common Symptoms

  • The app shows the Nest Learning Thermostat as offline or unavailable
  • You cannot adjust the temperature remotely from your phone
  • No Wi-Fi symbol showing on the thermostat display
  • The thermostat still controls heating locally but shows no connection

Safe Checks You Can Try

1. Check Your Internet Connection

Test whether other devices on the same Wi-Fi network can access the internet. If nothing can connect, the problem is with your broadband or router rather than the thermostat.

2. Restart the Thermostat

Press and hold the thermostat ring for about 10 seconds until the screen turns off, then release to restart it. Allow two minutes for it to restart and reconnect.

3. Restart Your Router

Unplug your router from the mains for 30 seconds, then plug it back in. Wait for it to fully reconnect, then check whether the thermostat comes back online.

4. Check Wi-Fi Signal at the Thermostat

The Nest Learning Thermostat needs a stable Wi-Fi signal where it is mounted. On the thermostat, check the Wi-Fi signal strength in Settings. If weak, a Wi-Fi extender nearer the thermostat will help.

5. Check the Thermostat Has Power

The Nest Learning Thermostat is powered by your heating system or its internal battery. If the display is blank, the battery may have fully discharged — see the low battery guide for charging steps.

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When To Contact Support

If you have worked through the checks above and the issue persists, contact Google Nest support at https://support.google.com/googlenest. For heating system faults that do not resolve, consult a qualified heating engineer — the Nest Learning Thermostat works with your existing boiler wiring and a heating professional can check the connections safely.

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