If you need to adjust the displayed temperature up or down, there is a calibration feature in your thermostat. Although it is factory calibrated and should not need to be changed, you can adjust it to match a different thermometer in home.
To adjust your calibration, perform the following steps:
For example: Putting this adjustment to – 2 will lower the display temperature by 2 degrees. Putting this adjustment to + 2, will increase the displayed temperature by 2 degrees.
The maximum amount you can calibrate the thermostat is plus or minus 5 degrees Fahrenheit. (Plus or minus 2 Celsius)