Water pump
Replaces 8181684
Water left in the drum after a cycle usually points to the pump.
Water inlet valve
Slow filling, no water or no ice can trace back to this valve.
Door boot
Leaks or mould on the door boot mean it's time for a new one.
Water-level pressure switch
Replaces 8181695
Door, lid and control switches stop a cycle when they fail.
Door lock assembly
Door, lid and control switches stop a cycle when they fail.
Hose
Replaces 8181739
Cracked or leaking hoses should be replaced before they burst.
1Water pump280187
2Inlet valveWP8181694
3Door bootWP8182119
4Pressure switchWPW10514214Part numbers come from the Sears PartsDirect parts list for the Whirlpool GHW9400PT3 (view the list), checked November 15, 2026. Amazon buttons open a search for the part number; we may earn a commission.
Where the model number is
Front-load: on the door frame or the door rim. Top-load: under the lid or on the back of the control panel.