How do I temporarily override the program?

You can temporarily override the program at any time by pressing either the UP or DOWN arrow button for about 2 seconds until the display flashes once. At that time you can use the UP or DOWN buttons freely to change the desired set point temperature. the display will return to normal mode after a few seconds. The program will resume at the next scheduled time setting in your program or 2-4 hours later (this setting is adjustable), whichever comes first. You can return to the program immediately by pressing the HOLD button twice.