Using this Prodigy oven selector switch is easy. First, make sure your oven is turned off and unplugged. Then, carefully install the switch in front of the oven thermostat as it's designed to work in conjunction with it. When using the oven, simply turn the switch to the desired position to select the oven function. Remember, position three is set at a 180-degree angle. As for maintenance, keep the switch clean and free from dust. If you notice any issues like loose connections or strange noises, turn off the oven immediately and check the switch. Also, since there are other switches that look similar, always double - check the suitability with your brand and model number before installation. You can contact us for more information. With our 25 - year experience in supplying appliance parts, you can trust this product for long - term use.