Homekit displays temperature sensor data wrong

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I see. In that case, here are a few more troubleshooting steps you can try:

1. Check if the issue is with HomeKit or the Ecobee sensor: To determine if the issue is with HomeKit or the Ecobee sensor, try checking the temperature readings from the Ecobee app or website. If the readings are correct there, then the issue is likely with HomeKit.
2. Check if the sensor firmware is up to date: Make sure that the firmware for the Ecobee sensor is up to date. You can check this in the Ecobee app or website.
3. Check if the temperature sensor is properly calibrated: Sometimes, temperature sensors can become slightly misaligned, leading to inaccurate readings. Check if the temperature sensor is properly calibrated by comparing it to another thermometer.
4. Try removing and re-adding the sensor in HomeKit: Sometimes, removing and re-adding the sensor in HomeKit can help resolve issues. To do this, go to the Home app, select the room the sensor is in, and then select the sensor. Tap "Remove Accessory" and then "Add Accessory" to re-add the sensor.
5. Contact Ecobee support: If none of the above steps work, you may want to contact Ecobee support for further assistance. They may have additional troubleshooting steps or be able to replace the sensor if it is found to be faulty...