W10752646 Drain Pump for Dishwashers – What It Fixes and How to Replace It
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Understanding the Problem
Brief explanation: W10752646 is a replacement drain pump / pump assembly used in many Whirlpool/KitchenAid/Maytag-style dishwashers. When the drain pump fails it prevents the dishwasher from draining water at the end of a cycle, can trigger drain or error codes, and may cause standing water and odors. Diagnostic & repair steps: 1) Confirm the symptom: After a wash cycle ends you have standing water in the tub, the dishwasher pauses on drain, or you see a drain-related error code (e.g., F6, F7, or "drain" depending on model). 2) Basic checks before replacing the pump: a) Remove the lower dish rack and visually inspect the sump area for debris, broken glass, or food that can jam the pump impeller. b) Check the drain hose connection at the sink or disposer—ensure it isn’t kinked, clogged, or trapped under the sink P-trap. If connected to a garbage disposer, verify the knockout plug has been removed. c) Run a short drain-only cycle and listen. A working pump makes a humming/whirring noise; a totally silent pump or a loud grinding sound points to pump failure. 3) Electrical check (only if comfortable and safe): a) Unplug the dishwasher or shut off its breaker. b) Access the pump wiring (usually behind the lower access panel at the front). With the harness disconnected, check continuity across the pump motor terminals with a multimeter. A completely open reading (OL) indicates a burned-out motor. A short to ground indicates motor failure. 4) Prepare for replacement: a) Tools: Philips and flat screwdrivers, nut driver set, pliers, multimeter, bucket and towels, replacement part W10752646, and hose clamps if needed. b) Turn off power and shut off water if you’ll disconnect water lines. Place towels on the floor and have a bucket ready for trapped water. 5) Remove old pump and install W10752646: a) Remove the lower access (toe) panel; pull out the lower kickplate screws. b) Tip or pull the dishwasher out slightly if needed to access the hose connections under the sink (disconnect power first!). c) Remove the lower spray arm and the filter assembly to access the sump/pump area. d) Disconnect the electrical connector to the pump motor and the drain hose(s). Loosen hose clamps and have a towel/bucket ready for water. e) Remove any retaining clips or screws holding the pump/sump assembly. Extract the old pump—note the orientation and how hoses are routed. f) Install the new W10752646 pump in the same orientation. Reinstall seals/gaskets; replace any brittle clamps. g) Reconnect the electrical plug and drain hoses, tighten clamps, and reassemble the filter, spray arm, and access panel. 6) Test the repair: a) Restore power and run a short drain cycle or rinse cycle. Watch for leaks and listen for the pump running. Verify the dishwasher fully drains. b) If it still won't drain but the pump runs, re-check drain hose routing, air gap, and garbage disposer connection. Safety note: Always disconnect power at the breaker and remove power plug before working on the dishwasher. If you are not comfortable with electrical testing or lifting the unit, hire a qualified appliance technician.
Common Symptoms
Dishwasher stops and leaves standing water, drain-only cycles fail, unusual grinding or humming noises from the bottom, or drain-related error codes.
Common Causes
- Clogged sump or impeller jammed by debris (glass, food, labels)
- Burned out or seized pump motor
- Cracked pump housing or leaking seals allowing water to bypass
- Blocked drain hose, air gap, or garbage disposer connection
Popular Parts That Fix This Problem
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Helpful Repair Tip
To confirm the pump is faulty: remove debris and test for motor continuity with a multimeter. If the motor has no continuity or is shorted to ground, replace it with W10752646.
Frequently Asked Questions
How much does the W10752646 pump cost and how long does replacement take?
Typical cost for the W10752646 pump ranges from about $40 to $120 depending on retailer and warranty. A competent DIYer can replace the pump in 30–60 minutes; allow more time if you’ll pull the dishwasher out from the cabinetry.
Can I repair the existing pump instead of replacing it?
Minor issues like debris inside the impeller can be cleared, but motor failures, burnt windings, or cracked housings require full pump replacement. Given the low cost of the assembly and labor involved in opening the sump, replacing the W10752646 is usually the most reliable fix.
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