How do I know if my wash pump motor is bad?

Common indicators include dishes not getting clean, unusual noises like grinding or humming during the wash cycle, or a lack of water spraying from the wash arms. Some dishwashers may also display specific error codes related to water circulation issues.

Can I replace just the motor or do I need the whole pump assembly?

This depends on the specific dishwasher model and the available replacement parts. Some models allow for replacement of just the motor, while others require replacing the entire wash pump assembly, which includes the motor, pump housing, and impeller. Consult your appliance's parts diagram.

What causes a dishwasher wash pump motor to fail?

Over time, normal wear and tear can lead to motor failure. Other causes include debris like food particles or foreign objects getting into the pump, electrical issues, or a seized impeller that overworks the motor. Regular cleaning can help prevent some issues.

Dishwasher Wash Pump Motor Guide: Symptoms & Replacement

Appliance Aid takes part in the Amazon Associates programme. Some links on this page are affiliate links, and a qualifying purchase earns us a commission. Your price is unchanged.

🏆 RECOMMENDED PART

WPW10538166 Dishwasher Circulation Pump Inlet Grommet Compatible with Whirlpool KitchenAid Maytag Kenmore Dishwashers Replaces W10538166 W10

Flexible Rubber Material: Made from durable rubber, the WPW10538166 Dishwasher Pump Grommet withstands hot water, detergent, and frequent wash cycles while resisting cracking, hardening, and deformation for lasting use.
Precise Compatibility: The WPW10538166 Circulation Pump Inlet Grommet fits for Whirlpool, KitchenAid, Maytag, Kenmore, and Amana dishwashers. Replaces 3021506, AP6022761, EAP11756098, PS11756098, W10195068, W10538166,...
Reliable Pump Seal: The flexible WPW10538166 Dishwasher Pump Grommet creates a tight seal between the sump assembly and circulation pump, helping prevent leaks and support smooth, reliable dishwasher operation.
When to Replace: Replace the WPW10538166 Grommet if water leaks beneath the dishwasher or the seal is cracked, hardened, compressed, stretched, torn, loose, or misaligned. If the pump works, replacing the seal may avo...
Dishwasher Pump Grommet WPW10538166 Compatible with Whirlpool Model: ADB1400AGW0;ADB1400AMB0;ADB1400AMW0;ADB1400PYD1;ADB1400PYS0;ADB1400PYS2;ADB1400PYS3;ADB1400PYS5;ADB1400PYS6;ADB1400PYW0;ADB1400PYW2;ADB1400PYW3;ADB1...

Check Price on Amazon

What the WPW10538166 does

The wash pump motor circulates water through the spray arms to clean dishes during a dishwasher cycle. It is essential for the washing action of the appliance.

Symptoms when this part fails

Dishes not getting clean
Loud humming or grinding noise during wash
No water spraying from arms
Dishwasher not filling or draining properly
Error codes related to water circulation

Compatibility

Fits the Maytag family. Specifically:

Any unit originally equipped with OEM part number(s): W10538166, 3021506, AP6022761, EAP11756098, PS11756098, W10195068, W11182008, WPW10538166VP.
Check the model/rating plate inside your appliance and compare it against the fitment table on the product listing before ordering — this guide does not list specific compatible models because Amazon does not provide verified fitment data through this pipeline.

Also replaces: W10538166, 3021506, AP6022761, EAP11756098, PS11756098, W10195068, W11182008, WPW10538166VP

Tools you'll need

Screwdriver set
Pliers
Nut driver set
Towels
Work gloves

Difficulty: Moderate · Time: 1-2 hours

How to install the WPW10538166, step by step

Disconnect power and water supply to the dishwasher.
Remove the lower access panel or kickplate.
Disconnect electrical wiring and water hoses from the pump.
Remove mounting screws or clamps securing the pump.
Carefully detach the old wash pump motor.
Install the new wash pump motor, ensuring proper alignment.
Reconnect all wiring, hoses, and secure mounting hardware.
Restore power and water, then check for leaks and test operation.