Washing machine doors can generally be opened by simply pulling on the handle or lifting the lid in the case of a top-loading washing machine. If the door is stuck closed, however, there is often an underlying problem preventing it from opening.
In order to open a washing machine door that has become stuck, one should first determine the cause of the problem. One of the most common causes is a broken handle mechanism, pin or the interlock, an electronic door lock that works with the machine's timer, allowing it to open only during certain times. If the door is stuck shut, a qualified repair person is often required.