How to Replace a Whirlpool Dishwasher Drain Pump (W10876537)

When your Whirlpool dishwasher displays an F5E2 error code or you find standing water at the bottom of the tub after a cycle completes, the drain pump is the most likely failed component. Whirlpool uses the W10876537 drain pump across most WDT and WDF series models (older models may use WPW10348269 — check your tech sheet). The pump is located underneath the dishwasher in the sump area and requires tipping the unit back or pulling it out from under the counter to access.

This is an intermediate repair that most handy homeowners can complete in 45-60 minutes. The drain pump is an electrical component, so power must be completely disconnected before starting.

Before You Start

• Tools needed: Torx T20 driver, 1/4" hex nut driver, needle-nose pliers, channel-lock pliers, towels, shallow pan or baking sheet, multimeter (optional for testing)
• Parts needed: Drain pump W10876537 (~$45-$75), pump gasket/O-ring (usually included with new pump)
• Time required: 45-60 minutes
• Difficulty: Intermediate
• Safety warning: Disconnect power at the circuit breaker AND unplug the dishwasher junction box under the sink. There will be residual water in the sump — have towels ready.

Step-by-Step Instructions

Step 1: Disconnect All Power and Water

Turn off the circuit breaker for the dishwasher (typically a dedicated 20A circuit). Under the sink, turn off the hot water supply valve (the one with a braided steel line running to the dishwasher). Open the dishwasher door and cancel any active cycle. Leave the door open for 5 minutes to let residual heat dissipate.

Step 2: Remove the Lower Access Panel (Kick Plate)

The lower access panel on Whirlpool dishwashers is held by two 1/4" hex head screws, one on each end. Remove these screws and the panel drops straight down and out. Set it aside. You now have access to the underside wiring, water supply line, and drain hose connections.

Step 3: Disconnect the Drain Hose and Catch Residual Water

Place your shallow pan or towels under the drain pump area. The drain hose connects to the pump output with a spring clamp. Use pliers to squeeze the spring clamp and slide it back along the hose, then pull the hose off the pump nipple. Water will drain out — typically 1-2 cups worth. Also disconnect the hose from the air gap or garbage disposal connection under the sink to fully drain the system.

Step 4: Remove the Dishwasher From Under the Counter

Open the door and remove the two Torx T20 screws at the top inner edge that secure the unit to the countertop underside. Close the door. Carefully slide the dishwasher forward. You need enough clearance to tip it back or lay it on its back to access the sump from below. Place a moving blanket or cardboard on the floor to protect the unit.

Step 5: Access the Drain Pump From Below

With the dishwasher tipped back (prop it at about 45 degrees against the wall or have someone hold it), you can see the pump motor assembly mounted to the bottom of the sump housing. The drain pump is the smaller of the two pump motors — the larger one is the circulation (wash) pump. The drain pump typically has a two-wire connector and one hose connection going outward toward the drain.

Step 6: Disconnect the Drain Pump Electrical Connector

The pump motor has a two-pin electrical connector. Press the locking tab on the connector and pull it straight off. Do not yank by the wires. If you want to verify the pump has failed before replacing, set your multimeter to resistance mode and test across the two pump terminals — a good pump reads between 5-40 ohms. An open circuit (OL) confirms the pump winding is burned out.

Step 7: Remove the Old Drain Pump

The drain pump attaches to the sump housing with a quarter-turn bayonet mount or 2-3 Torx T20 screws depending on your model year. For bayonet-mount models: twist the pump counterclockwise about 30 degrees and pull straight down. For screw-mounted models: remove the Torx T20 screws and the pump drops free. Note the orientation of the pump outlet for reinstallation.

Step 8: Inspect the Sump Opening and Clean

Before installing the new pump, inspect the sump port where the pump seats. Remove any debris, food particles, or broken glass that may have caused the original pump to fail. Check that the O-ring seating surface is clean and smooth — any nicks here will cause leaks. If your new pump includes a fresh O-ring or gasket, remove the old one completely.

Step 9: Install the New Drain Pump (W10876537)

Seat the new pump's O-ring into the groove (or onto the sump port, depending on design). Position the pump with the outlet oriented the same way as the original. For bayonet-mount: push the pump into the sump opening and twist clockwise 30 degrees until it locks. For screw-mount: hold the pump in position and drive the Torx T20 screws until snug — do not overtighten as the plastic housing can crack.

Step 10: Reconnect Wiring and Drain Hose

Plug the two-pin electrical connector back into the pump until you hear/feel the locking tab click. Reconnect the drain hose to the pump outlet nipple and slide the spring clamp back over the connection point. Verify the clamp is fully seated over the hose barb.

Step 11: Reinstall the Dishwasher and Reconnect

Slide the dishwasher back into position under the counter. Reattach the countertop mounting screws (Torx T20). Reconnect the drain hose under the sink to the air gap or disposal. Open the hot water supply valve. Replace the lower access panel (two 1/4" hex screws). Restore power at the breaker.

Step 12: Test the New Drain Pump

Run a quick rinse cycle and watch under the unit (you may want to leave the kick plate off temporarily). Listen for the drain pump activating at the end of the cycle — it should produce a steady humming sound for 30-60 seconds. Check all connections for leaks. If the F5E2 error code was stored, enter diagnostic mode to clear it: press the three-button sequence shown on your tech sheet within 4 seconds (commonly Heated Dry, Normal, Heated Dry on WDT series models).

Troubleshooting After Replacement

• F5E2 still appears after pump replacement: Run diagnostic mode to clear stored codes. If the code returns during a test cycle, check the drain hose for kinks and verify the air gap under the sink is not clogged. Also verify the new pump connector is fully seated.
• Pump runs but water does not drain: The check valve inside the new pump may be stuck. Remove and reinstall the pump, ensuring no shipping plugs or packaging were left inside the outlet port.
• Leak from pump area: The O-ring is not seated properly or the bayonet lock is not fully engaged. Remove the pump, inspect the O-ring for pinching or damage, and reinstall.
• Pump makes loud grinding noise: Debris in the sump is being pulled into the new pump. Remove the pump, clear the sump thoroughly, and reinstall. Check that the chopper blade (W10083957) above is intact — a broken blade lets larger particles reach the pump.

When to Call a Professional

• You cannot safely tip or pull out the dishwasher (built-in models with granite countertops, hardwired electrical connections)
• The circulation pump has also failed (both pumps failing simultaneously usually indicates an electrical surge damaged the control board)
• The sump housing itself is cracked — this is not a pump issue but a structural failure requiring sump replacement
• You are uncomfortable working under a tipped appliance or making electrical connections

Cost Comparison: DIY vs Professional

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FAQ

Q: How do I know if it is the drain pump or just a clogged filter causing standing water? A: Remove and clean the dual filter assembly first (upper cylinder twists counterclockwise, lower mesh lifts out). Run a cycle. If water still stands in the tub after the cycle ends and you hear no humming from the drain pump area, the pump motor has failed. The F5E2 error code specifically points to drain pump failure.

Q: Is W10876537 the same as WPW10348269? A: W10876537 is the current part number for most WDT/WDF models made after 2015. WPW10348269 is the older superseded number used on pre-2015 models. They are not interchangeable — verify your model number against the parts diagram on the Whirlpool parts website.

Q: Can a failed drain pump damage the control board? A: A seized pump motor draws excessive current which could potentially damage the pump relay on the control board (W11305310). If your new pump does not activate at all after installation, the relay on the board may have burned out from the old pump's failure.

Q: Why does my Whirlpool dishwasher have two separate pumps instead of one reversible pump? A: Whirlpool uses dedicated pump motors for wash (circulation) and drain functions rather than a single reversible pump (which some competitors use). This design provides more powerful wash pressure through the TotalCoverage 3-arm system but means two potential failure points rather than one.

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