Adjust cycle period to the desired number of minutes. Remove the thermostat from the wall plate.
While holding down the reset button, press down the arrow (non-programmable) until the offset indicator appears. Release reset button.
Immediately press the reset button again. (Offset setting will not be lost).
Use up & down arrows to toggle between 6, 12, 20, and 60. 12, 20 & 60 used for heat pumps
Press the reset button again to select desired cycle period. Replace thermostat to wall mount.
Slide mode switch to heat or cool & wait 10 seconds.