There are two types of door openers for storm doors. The first one is a “hold-open button” closer, and the second one is a “standard” closer. For the “hold-open button” closer, you want to open the door to the desired position. Once the door is opened to its desired location, press the button to hold the door in an open position. For the “standard” closer, you want to open the door into the desired position. Once the door is opened to its desired position, slide the washer on the closer towards the tube. This will lock the door in place. To close the storm door, open the door past the desired position to release the “hold-open” or “standard” locking mechanism.