A dishwasher drain pump removes wastewater from the tub at the end of each wash and rinse cycle. It ensures proper draining and prevents water from remaining inside the machine.

Common symptoms of a faulty drain pump include standing water in the bottom, unusual humming or grinding noises, and program errors related to draining. Causes can include blockages (food debris, glass fragments), a damaged impeller, or electrical failure. When choosing a replacement, match the exact dishwasher model and service/PNC number for compatibility.