Using this Whirlpool front - loader thermostat is straightforward. First, make sure your washing machine is turned off and unplugged before you start installing it. It's relatively easy to fit, but if you're unsure, you might want to consult a professional. During the warranty period of 3 months from the purchase date, if you notice any problems with its operation, let us know right away. We'll either exchange it for a similar item or give you a refund if a similar item isn't available. However, remember that return postage is on you. The warranty doesn't cover appearance issues or damage that happens after you've installed and used the thermostat. To keep it in good shape, avoid exposing it to excessive moisture or extreme temperatures. And that's it! Enjoy the reliable performance of your new thermostat.