W11462455, dishwasher circulation pump, Whirlpool dishwasher wash pump, dishwasher pump motor, W11048807, CPF25-502, dishwasher won't wash, dishwasher no water pressure, dishes not getting clean, dishwasher spray arms not working, Whirlpool dishwasher pump, KitchenAid dishwasher pump motor, Maytag dishwasher circulation pump, dishwasher motor replacement, dishwasher no spray, dishwasher hums but won't wash, dishwasher fills but won't clean, dishwasher pump noise, dishwasher wash motor, dishwasher recirculation pump

Part number W11462455 replaces W11048807, CPF25-502

Whirlpool

JDPSG244LS0, JDPSG244LS1, JDPSG244LS2, JDPSS244LL0, JDPSS244LL1, JDPSS244LL2, JDPSS244LM0, JDPSS244LM1, JDPSS244LM2, JDPSS245LX0, JDPSS246LL0, JDPSS246LL1, JDPSS246LM0, JDPSS246LM1, KDFE204KBL0, KDFE204KBS0, KDFE204KPS0, KDFE204KWH0, KDTE204KBL0, KDTE204KBS0, KDTE204KPS0, KDTE204KWH0, WDTA80SAKZ0

Safety Note: Always disconnect power before working on your dishwasher. This repair involves working with electrical connections and water.

Tools Needed:

• 1/4" nut driver or socket
• Phillips screwdriver
• Torx screwdriver (T15 or T20, model-dependent)
• Pliers or hose clamp pliers
• Towels and shallow pan
• Smartphone or camera (to photograph connections)
• Work gloves

Installation Steps:

Preparation:

1. Turn off power to the dishwasher – Switch off the circuit breaker (typically 15–20 amp dedicated circuit). Verify power is off.
2. Turn off water supply – Close the water shut-off valve under the sink that feeds the dishwasher.
3. Remove dishes and racks:Open the dishwasher door.Remove the upper and lower dish racks. Set aside.Remove the utensil basket.

Remove Internal Components for Access:
4. Remove the lower spray arm:

• The lower spray arm is attached to the top of the sump.
• Depending on model: twist counterclockwise and lift off, or remove a retaining clip/nut.

1. Remove the filter assembly:Remove the cylindrical fine filter (twist counterclockwise and lift).Remove the coarse filter/screen beneath it.Set aside — clean these while you have them out.
2. Remove the sump cover (if applicable):Some models have a sump cover plate secured by Torx or Phillips screws.Remove screws and lift the cover to expose the pump area.

Access the Circulation Pump from Below:
7. Remove the kick plate/lower access panel:

• Remove screws or release clips securing the kick plate at the bottom front.

1. Lay towels under the dishwasher – Water will spill when disconnecting the pump.
2. Remove the dishwasher from the cabinet (recommended for easier access):Remove the screws securing the dishwasher to the underside of the countertop.Carefully slide the dishwasher forward.Alternatively, you can work from below with the dishwasher in place, but access is tight.
3. Tip the dishwasher back (if removed from cabinet):Carefully tilt the dishwasher onto its back to access the bottom.Place on a blanket or cardboard to protect the floor and dishwasher.

Remove the Old Circulation Pump:
11. Photograph all connections – Before disconnecting anything, take clear photos of every wire connector, hose connection, and mounting point.
12. Disconnect the electrical connector:
- Locate the wire harness connector on the circulation pump motor.
- Press the release tab and unplug.
13. Disconnect hoses (if applicable):
- Some installations have hoses connecting the pump to the sump or spray arm channels.
- Squeeze hose clamps and slide back, then pull hoses off.
- Have towels ready for water.
14. Remove the circulation pump from the sump housing:
- The pump typically attaches to the sump with a twist-lock mechanism, mounting screws, or a retaining ring.
- Twist-lock: Turn the pump counterclockwise (about 1/4 turn) and pull down.
- Screws/bolts: Remove mounting hardware.
- Retaining ring: Use pliers to release the ring, then pull the pump free.
- Note the orientation and position of the pump — the new one must install the same way.
15. Inspect the sump housing:
- Check for debris, broken glass, or foreign objects.
- Clean the sump area and sealing surfaces thoroughly.
- Inspect the pump mounting area for cracks or damage.Install the New Circulation Pump:
16. Position the new W11462455 pump:
- Align the new pump with the sump housing in the same orientation as the old pump.
- Ensure any gaskets or O-rings are properly seated.
17. Secure the pump:
- Twist-lock: Insert and turn clockwise to lock.
- Screws/bolts: Install and tighten mounting hardware.
- Retaining ring: Snap into place.
- Ensure the pump is fully seated with no gaps.
18. Reconnect hoses:
- Push hoses onto pump connections.
- Slide hose clamps back into position and secure.
19. Reconnect the electrical connector:
- Plug the wire harness firmly into the new pump motor.
- Ensure it clicks into place.Reassemble:
20. Return dishwasher to upright position (if tipped back).
21. Reinstall the sump cover (if removed) — secure with screws.
22. Reinstall the filter assembly:
- Place the coarse filter/screen first.
- Insert the fine filter and twist clockwise to lock.
23. Reinstall the lower spray arm:
- Place on the sump hub and twist clockwise or secure with clip/nut.
- Spin the spray arm to verify it rotates freely.
24. Reinstall dish racks and utensil basket.
25. Slide dishwasher back into cabinet (if removed):
- Carefully push back into position.
- Secure to countertop with mounting screws.
26. Reinstall the kick plate.Test the Repair:
27. Turn on water supply – Open the shut-off valve.
28. Restore power – Turn on the circuit breaker.
29. Run a test cycle:
- Select a short wash cycle (rinse only or quick wash).
- Listen for the circulation pump to activate — you should hear a steady motor hum followed by the sound of water being forced through the spray arms.
- Open the door mid-cycle (after the wash phase starts) to verify water is spraying from the spray arms.
- Check underneath for any leaks.
30. Run a full cycle:
- Load a few dirty dishes and run a normal cycle.
- Verify dishes come out clean.
- Check for leaks after the cycle completes.

Before replacing the circulation pump, check for blockages that can mimic pump failure. A clogged dishwasher can produce the same symptoms as a bad pump — dirty dishes, weak spray, and poor performance. Start with these checks: (1) Clean the filters — remove and thoroughly clean the fine filter and coarse screen at the bottom of the tub. Clogged filters restrict water flow to the pump, reducing spray pressure dramatically. (2) Check the spray arms — remove the upper and lower spray arms and inspect the spray holes. Food particles, mineral deposits, and debris can clog the tiny holes, reducing spray coverage. Clean with a toothpick or thin wire and rinse thoroughly. (3) Inspect the spray arm bearings — the spray arms should spin freely. If they're stiff or stuck, water distribution is compromised. (4) Check the chopper blade area — some models have a food chopper near the sump that can get jammed with debris (bones, fruit pits, broken glass). If all these are clear and the dishwasher still won't wash properly, the circulation pump has likely failed. Diagnostic tip: During the wash cycle, put your hand on the dishwasher door — you should feel a slight vibration from the pump motor running. If you feel nothing and hear silence during the wash phase (but the dishwasher fills and drains normally), the pump motor is dead. If you hear a loud hum but no water movement, the motor may be running but the impeller is broken or jammed. Either way, the W11462455 assembly replaces the entire pump and motor unit. Important: When reinstalling, ensure the pump is fully seated in the sump housing with no gaps — an improperly seated pump will leak and may not build proper pressure.