Using this oven clock timer module is a breeze. First, make sure your oven is turned off and unplugged. Then, measure the cutout hole in your oven to ensure it matches the 102mm x 66mm size of this module. Carefully insert the module into the hole and connect the 4 spade terminals. Remember, the pushbuttons aren't included, so you'll need to use your existing ones or get compatible ones. When you're unsure if this part is right for your oven, don't guess - send us your model number. As for maintenance, keep the module clean by gently wiping it with a dry cloth. Avoid using harsh chemicals or abrasive materials. If you encounter any issues, our guarantee means we'll take care of it, so buy and use it without worry.