Using this dishwasher lower door seal is simple. First, turn off your dishwasher and unplug it for safety. Remove the old seal carefully. Then, place the new seal in position, making sure it fits snugly. Plug the dishwasher back in and turn it on to check. As for maintenance, regularly clean the seal with a mild detergent and a soft cloth to keep it in good condition. If you notice any signs of wear or damage, replace it promptly. And always remember, if you're not sure about anything, contact us with your appliance's full model number.