Customer Questions and Answers for Drain Pump Assembly (Water Pump) by Whirlpool

This drain pump assembly moves water out of the appliance during the drain portion of the cycle. Replacing a weak or failed pump restores proper draining and helps prevent standing water, odors, or repeated drain attempts.

• Actively pumps wastewater through the drain hose to household plumbing
• Engages during the drain step to clear the tub/sump between and after cycles
• Typical failure symptoms: won't drain or drains slowly; water left in the bottom; loud humming/grinding during drain; leaks around the pump area
• May fail due to worn motor, damaged impeller, or debris lodged inside the pump

• Disconnect power and turn off water supply; bail or wet-vac any standing water before starting
• Keep towels or a shallow pan ready; clamp or plug hoses to control residual water
• Transfer hose connections and any mounting hardware from the original pump; ensure seals and clamps are seated firmly
• After installation, run a short cycle to check for leaks