Using this Westinghouse oven clock timer module is a breeze. First, make sure your oven is turned off and unplugged for safety. Then, find the old timer module and carefully remove it. You'll need to match the new module's 4 spade terminals with the right connectors in the oven. Once it's connected, place the module into the cutout hole (it's 101mm x 66mm, so it should fit just right). Double - check all connections and then plug your oven back in. If you're not sure about any step, don't hesitate to contact us. As for maintenance, keep the module clean and free from dust. Wipe it gently with a dry cloth every few months. And remember, if you're ever in doubt about its suitability for your oven, always reach out with your model number. We're here to help and the module comes with a full guarantee, so you can use it worry - free.