Here are some things you can try to fix the issue with your Nest thermostat not cycling between schedules:
- Check the thermostat's location and wiring. Make sure that the thermostat is located in a central location in the room and that the wiring is secure.
- Update the thermostat's firmware. Go to the Nest app and tap on the thermostat you're having trouble with. Then, tap on Settings > About > Software update. If there's an update available, tap on Download and install.
- Disable Home/Away Assist. Home/Away Assist can sometimes interfere with the thermostat's schedule. To disable it, go to the Nest app and tap on the thermostat you're having trouble with. Then, tap on Settings > Home/Away Assist and toggle the switch off.
- Reset the thermostat. If you've tried all of the above and the issue is still not resolved, you can try resetting the thermostat to factory settings. To do this, hold down the Nest button on the thermostat for 15 seconds. Once the thermostat has reset, you'll need to set it up again from scratch.
If you've tried all of the above and the issue is still not resolved, you can contact Nest support for help.
Here are some additional things to keep in mind:
- The Nest thermostat has a maintenance band, which is the range of temperatures within which the thermostat will not turn on the HVAC system. This is to prevent the system from cycling on and off too frequently, which can shorten its lifespan. The default maintenance band is 1°F for cooling and 0.7°F for heating. You can adjust the maintenance band in the Nest app.
- If the thermostat is not connected to the internet, it will not be able to follow the schedule. Make sure that the thermostat is connected to a strong Wi-Fi network.
- If the thermostat is not receiving power, it will not be able to follow the schedule. Make sure that the thermostat is plugged in and that the batteries are not low.
I hope this helps!