Press the “1” and “3” keys on the keypad simultaneously. The keypad beeps three times and two dashes and two zeros flash in the upper left corner of the screen. You have entered Program Mode.
Press the “9” key. The display flashes “EE.”
Press the “1” key to reset the default values. The keypad beeps three times and two dashes and two zeros flash in the upper left corner of the screen.
Press the “*” key to exit the Program Mode.