[header] How to maintain a dishwasher [title] Clean the dishwasher filter to remove debris and stuck food pieces. [step] Solid waste can damage the dishwasher pump. [substeps] Find the owner's manual for your dishwasher model. 
If you do not have a copy, find your model number. The manufacturer and model number are usually located on the edge of the door frame either on the sides or the bottom below the dishwasher door.