Not cleaning or overcleaning dishes before loading them
Don’t fall for ads which show dishwashers cleaning practically full meals off of dinner plates. Doug Rogers, past president of Mr. Appliance, says food particles remaining on plates can gum up the moving parts of the appliance and get cut in the crevices. Rinsing can help prevent this and keep your machine running smoother for longer. However, cleaning your plates entirely is one way you’re loading your dishwasher incorrectly. Leaving some residue on them is necessary in order for the detergent to work properly, says Shirley Hood, an appliance expert and sales representative with Abt Electronics.
Abusing the door
Don’t let your pets or children sit on the door to the dishwasher. It may sound obvious, but it’s something Hood, with over 20 years experience, sees often, along with damage from people tripping over the doors of their dishwashers. Plus, it’s so fun to play with the door at the end of the cycle and watch the steam come billowing out!