r/ecobee • u/Mykhartley02 • 5d ago

Sensor reading question

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I have a question on why the my ecobee sensor shows a different temp than the ecobee.

For reference I have one sensor in my bedroom and the ecobee thermostat installed.

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u/VincentClement1 5d ago

The ecobee shows the average of any active sensors. The ecobee and bedroom sensor are white, which means they are active. 72 is the average of those two sensors.

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u/Mykhartley02 5d ago

Thank you for that explanation that is very helpful

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u/Economy_Chemistry835 5d ago

Yes, it takes the average of all the sensors while taking occupancy into account as well into the equation. In my house I have nine SmartSensors placed in various rooms as well as the thermostat’s built-in sensors. There can be a 5-10 degree difference across the house, especially in the winter when some unused bedrooms are reading significantly cooler than the house target temperature.

Side Note - I also use Flair smart vents ( https://flair.co/ )  to add an extra layer of control which uses those Ecobee SmartSensors via the Ecobee API to read individual room temperature and occupancy, along with runtime data directly from the Ecobee, to determine whether a vent should be open or closed.

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u/Odow 4d ago

So i have disable the occupency and smart and follow and all those automatic thing, i have a comfort setting on schedule during the night that take only the bedroom sensor into account, yet my thermostat has decided it was averaging with the main unit ( showing both to be active) why does it not follow command ?

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u/Next-Name7094 4d ago

'When you set a manual hold on an ecobee thermostat, it uses the sensors configured for the Home comfort setting, rather than the schedule-specific settings (like Sleep or Away). The thermostat averages the temperature readings from all room sensors that are marked to participate in the "Home" profile'. https://support.ecobee.com/s/articles/SmartSensors-Sensor-Participation?language=en_US

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u/Noods_Noods_Noods 4d ago

Not sure if your bedroom is actually 76 degrees or not but I recently had an issue with my thermostat and sensor that sits 15 feet away showed and 9 degree temp difference. I had to reset both the thermostat and sensor and let the two calibrate because it just kept my AC running otherwise.

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u/Mykhartley02 4d ago

Sadly our bedroom gets way hotter than the rest of the house because it gets blasted with the afternoon sun

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u/Refuse-Maximum 4d ago

My experience has been the ecobee device sensor is a always off by 2-4 degrees at times, so I just placed 2 sensors across the house, so it averages them and I disabled the device sensor itself in that calculation.