Change Your Settings
Press the "Hold" button on the thermostat.
Look for the factory default settings. "FA" indicates your unit is on a fast heating cycle rate, which maintains the room temperature to just under 1 degree F of where you set it. "SL" indicates your unit is on a slow heating cycle rate, which maintains room temperature between 1.5 and 2 degrees F of where you set it.
Use the arrow "Up" or arrow "Down" buttons to change your settings. If you want more precise temperature control, choose "FA." If you want to maintain the 2-degree spread, choose "SL."
Hold the Temperature
Set your thermostat to "Heat" or "Cool."
Press the "Hold" button. A clock will appear, allowing you to set the time you'd like the temperature hold to remain in place. Continue pressing the "Hold" button until the display reads the time of your preference. Make sure the display blinks when you release the "Hold" button.
Use the arrow "Up" or "Down" buttons to set the temperature. The thermostat will hold the room to this temperature for the set time you designated in the previous step. After time expires, the thermostat automatically resumes its regular programming schedule.