When the timer button is pressed it will light up, the appliance will beep, the LED display flashes and shows "00:00"".Set the time using the ""+"" or ""-"" button, ""+"" will increase the time by 1 minute, ""-"" will decrease the time by 1 minute.To quickly set the time in 10 minute increments hold the ""+"" or ""-"" button down. This should be done within 5 seconds of pressing the timer button or the LED display will default back to ––:––.The timer range is 1 minute - 3 hours. Once the timer has been set the LED display will flash. Select the desired power level within 5 seconds (if not timing will not begin and the appliance will automatically turn off within 2 minutes). The display will then count down (indicated by the colon flashing) and heating will begin. After the set time has been reached, the appliance will turn off. To cancel timing during the count down, press the timer button. It will continue heating unless it is switched off."