Before buying another ecobee sensor because Follow Me seems to ignore a room, check whether the existing sensor participates in the active Comfort Setting. ecobee says Follow Me prioritizes recent activity among sensors included in that setting. A connected sensor is not necessarily an eligible input at every time of day.
Reproduce one situation before changing anything
Write down the time, active Comfort Setting, sensor name and symptom. Suppose the office seems to matter during the day but not at night. Compare the sensor participation for the settings active at those times. Check whether the thermostat is running its normal schedule or a manual hold before comparing results; that can make two apparently identical tests use different inputs.
Change one variable and measure what follows
If the office sensor is connected but not included in the setting you mean to test, change only that setting if appropriate for your household, then observe the thermostat under comparable occupancy. Record the result without assuming it responds immediately. If the sensor is already participating, inspect connection, placement and actual activity before buying hardware. This setting changes what the thermostat listens to; it does not add separate room heating or cooling.
Source: manufacturer’s current documentation. Related: check the companion setup or buying guide.
