Using this defrost termination cutout is easy. First, make sure your fridge is unplugged for safety. Then, locate the old cutout and remove it carefully. Connect the new cutout using the 2 - pin plug. Plug your fridge back in and it should work. When using, always keep the fridge in a well - ventilated area. For maintenance, clean the cutout occasionally with a dry cloth to prevent dust build - up. If you notice any issues, such as the fridge not defrosting properly, unplug the fridge and check the connections. If the problem persists, it's best to consult a professional.