Control Panel Operation For The Char-Broil TRU-Infrared Big Easy 2-in-1 Electric Smoker & Roaster Operating the control panel of The Big Easy is well, easy. Plug the power supply cord into a properly grounded, GFI protected outlet. If an extension cord must be used, refer to the "Extension Cord Use and Safety" section of your product guide. Press Power On/Off Button power on or off the unit. If the Digital Food Thermometer is not fully engaged into the Jack, three dashes will appear in on the display. Once the Digital Food Thermometer is plugged into the unit, the temperature it measures will be displayed in degrees Fahrenheit on the LCD Food Temperature Display. To toggle between degrees Celsius and degrees Fahrenheit, press the Temperature Mode button. An audible beep sounds each time a button is pressed. Press and hold the Temperature Mode Button for two seconds to disable this feature. To re-enable this feature, press and hold the Temperature Mode Button again for another two seconds. The control panel is designed to automatically power off after 12 hours of continuous operation.