Using this pressure switch is straightforward. First, make sure your washing machine is turned off and unplugged. Locate the old pressure switch and carefully remove it. Then, install the new switch in its place, ensuring all connections are secure. When it comes to usage, the switch will automatically detect the water level in your washer. As for maintenance, keep it clean and dry. If you notice any signs of damage or if the washer starts having water - level issues, check the switch. And remember, always refer to your washing machine's manual for specific details. If you have any concerns, don't hesitate to reach out to us.