How do I power my device on or off? To power on: Tap the power button quickly until a blue or green light appears To power off: Hold the power button down until a white light appears. If the light is pink, a fresh battery will be required soon. Related articles I already have a Weber-ID. Do I have to create a new account for the Weber iGrill App? How can I prevent my smart device's screen from sleeping while I am using the Weber iGrill App? My device won't stick to this surface. How come?