How do I power my device on or off? To power on: Tap the power button quickly until a blue light appears To power off: Hold the power button down until the blue light is no longer visible Related articles My iGrill 3 seems to have turned off while still in use. How can I fix this? Is there a display on the iGrill 3? What is the iGrill 3 thermometer? What do the various colored lights on the iGrill Mini represent? How do I change the reading in the Weber iGrill App from Fahrenheit to Celsius?