The dishwasher door latch keeps the dishwasher door closed during the washing cycle. It is a small mechanical device that consists of a latch and a catch mechanism that holds the door securely in place. A faulty or broken dishwasher door latch can prevent the dishwasher from functioning correctly and can be a safety hazard as well. If you notice that the dishwasher door is not closing properly or if it opens during a cycle, it may be time for dishwasher door latch repair. Dishwasher door latch replacement requires some basic DIY skills. Follow these steps to replace your dishwasher door latch: Pull out the dishwasher Unthread the screws Disconnect the old door latch Connect the new door latch Secure the latch with screws Assemble the door properly