Using this Fisher & Paykel dishwasher door latch assembly is easy. First, make sure your dishwasher is turned off and unplugged. Then, carefully remove the old latch assembly and replace it with this new one. It's designed to fit easily, so you should be able to do it without much trouble. As for maintenance, keep the latch clean by wiping it down occasionally with a soft, damp cloth. If you notice any problems like it not latching properly, don't try to fix it yourself. Just contact us right away. And remember, if you're ever unsure about the suitability of this part for your dishwasher, always check with us before making a purchase.