Using this Wenham simmerstat control is easy. First, make sure your commercial stove is turned off. Then, connect the control according to the wiring diagram that usually comes with your stove. Once connected, you can turn on the stove and use the infinite control to adjust the heat as you like. As for the non - isolated pilot lamp, the switch included will let you control its operation. When using it, always be careful not to touch the contacts directly with wet hands. For maintenance, keep the control clean. You can use a dry cloth to wipe off any dust. If you notice any problems, like the control not adjusting the heat properly, it's best to contact a professional for repair.