In my house we have a Nest thermostat with three zone sensors. Because the thermostat is in a hallway, which hardly gets any traffic and thus not representative of the temperature in the rest of the house, we opted out to place sensors in the rooms which are most utilized. The sensors make both the house temperature more manageable, and the electricity bill not as high.
Google has the zone hours schedule hard set to morning, afternoon, evening, and night, without the option to modify the start and end times. Unfortunately, in the last month or two the thermostat/sensors stopped following the zone schedule and zone cycling is off by two to three hours of when it is supposed to change. At first, I thought it might be a time zone situation, because I did travel within the last month, but that should not be an issue. It is not the first time I have traveled, and the time zone should be based on the house address. Besides, I did not find an option to set a time zone neither on the thermostat, nor in the app. After some searching, it turned out that this is not a very uncommon problem, the solution to which is a bit tedious though. You have to reset the temperature schedule on the thermostat and then recreate it in the Nest app! Luckily for me, we have a very simple temperature schedule, so it was easy to re-create it in the app.
To reset the temperature schedule on the thermostat:
- Go to “settings”.
- Scroll right to “reset”. For me it was the very last option.
- Select “schedule”.
- Confirm your choice and wait for the thermostat to restart. For me the process was about a minute and a half.
- Once the thermostat has restarted use the Nest app to recreate the temperature schedule. The sensor zones schedule should not have been changed.