Q: How do I check if my heating coil is working?
A: As a safety feature the heating coil will not work while the lid is off and the coil is exposed. Rather you can check your heating coil from the side vent to the right of the unit above the mouthpiece storage slot. Turn your Square on with three consecutive taps to the start button. Turn the Square to its side and while looking through the vent, press and hold the start button. In several seconds you should be able to see the coil glowing orange briefly. This means your coil is installed properly and is heating the selected chamber.