Why isn’t my smart thermostat following its schedule?

A hold, away mode, sensor rule, time-zone error, or utility program can override the schedule you set.

Check for a manual hold, away mode, time-zone error, or automation that is overriding the schedule.

Why a thermostat seems to ignore you

A smart thermostat juggles several instructions, and the highest-priority one wins quietly. Your schedule is only one layer. A manual hold, an away mode triggered by your phone leaving home, a learning feature, a remote sensor, and even a utility program can all sit above it. When the temperature drifts, the thermostat is usually obeying something — just not what you were looking at.

What to do, step by step

1. Look for Hold, Away, or Eco on the thermostat and in its app. Cancel any hold and choose “resume schedule.”
2. Check the time, date, and time zone, then open the schedule itself to confirm each day and time block was saved as intended.
3. Turn off one smart feature at a time — away mode or geofencing first, then learning options — testing for a day between changes.
4. Check which room sensor is active. A sensor in a sunny or drafty room can drive heating and cooling for the whole house.
5. Review any utility energy-saving program you joined. Some let the power company nudge your temperature during peak demand for a credit.
6. Note when overrides happen for a few days. A pattern — always when you leave for work — points straight at the cause.