Whirlpool
Dishwasher

Model #DU940QWDZ5 Whirlpool undercounter dishwasher

Here are the diagrams and repair parts for Whirlpool DU940QWDZ5 undercounter dishwasher, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Save to my profile

    Showing 10 of 190 parts

    Dishwasher Circulation Pump Gasket

    #16

    Pump and motor Diagram

    $18.99 | 
    37% OFF 
    MSRP: $30.00

    In Stock

    Dishwasher Tine Tip Set, 125-pack (White)

    #NI

    All parts Diagram

    $20.99

    In Stock

    Dishwasher Rinse-Aid Dispenser Drip Cover

    #16

    Inner door Diagram

    $22.45 | 
    23% OFF 
    MSRP: $29.00

    In Stock

    Dishwasher Dishrack Spray Arm Mount Lock

    #8

    Dishrack Diagram

    Dishwasher dishrack spray arm mount lock

    Part #3374702
    This item is not returnable
    $5.79

    In Stock

    Dishwasher Door Frame

    #8

    Frame and console Diagram

    Dishwasher door frame

    Part #3374711
    $51.86 | 
    16% OFF 
    MSRP: $62.00

    In Stock

    Dishwasher Heating Element Support Bracket

    #52

    Tub assembly Diagram

    $19.07 | 
    36% OFF 
    MSRP: $30.00

    In Stock

    Dishwasher Self Threading Nut, 1/8-in

    #33

    Tub assembly Diagram

    $10.31 | 
    17% OFF 
    MSRP: $12.49

    In Stock

    Dishwasher Door Outer Panel Retainer

    #20A

    Frame and console Diagram

    $25.99 | 
    32% OFF 
    MSRP: $38.00

    In Stock

    Dishwasher Wire Harness Retainer

    #14

    Frame and console Diagram

    Dishwasher wire harness retainer

    Part #3376405
    This item is not returnable
    $7.29

    In Stock

    Dishwasher Drain Hose Cap

    #34

    Pump and motor Diagram

    Dishwasher drain hose cap

    Part #3371748
    This item is not returnable
    $7.04

    In Stock

    Symptoms common to all dishwashers

    Choose a symptom to see related dishwasher repairs.

    Main cause: damaged rack height adjuster
    Main causes: broken door spring, detergent dispenser failure, cabinet mounting brackets loose or broken
    Main causes: light switch beside the sink turned off, lack of power, bad dishwasher door switch, control system failure, wiring problem
    Main causes: water supply problem, stuck overfill float, clogged water inlet valve screen, water inlet valve failure
    Main causes: damaged or stuck spray arm, leaking door seal, damaged door hinge, leaky heating element water seal, cracked water supply line
    Main causes: broken door latch, tripped circuit breaker, broken heating element, faulty vent fan, sensor failure, control system problem
    Main causes: clogged kitchen sink drain, clogged drain hose, drain check valve damaged, drain pump failure, control system problem
    Main causes: glass or popcorn kernel stuck in the chopper blade, drain line vibrating against the cabinet, debris in wash pump or drain pump
    Main causes: not using rinse aid, rinse aid dispenser failure, broken heating element, malfunctioning vent, drying fan failure

    Repair guides common to all dishwashers

    These step-by-step repair guides will help you safely fix what’s broken on your dishwasher.

    October 1, 2016
    By Lyle Weischwill
    How to replace a dishwasher detergent dispenser

    Dishes need dish detergent to get clean. Learn how to replace a dishwasher detergent dispenser with easy step-by-step instructions.

    Repair difficulty
    Time required
     30 minutes or less
    April 1, 2014
    By Lyle Weischwill
    How to replace a dishwasher drain hose

    This step-by-step guide explains how to remove a cracked or leaking drain hose in your dishwasher and install a new one.

    Repair difficulty
    Time required
     30 minutes or less
    April 1, 2014
    By Lyle Weischwill
    How to replace a dishwasher thermal fuse

    A completely dead control panel often indicates that the thermal fuse on the electronic control board is blown; follow these steps to replace a blown thermal fuse in your dishwasher.

    Repair difficulty
    Time required
     15 minutes or less

    Articles and videos common to all dishwashers

    Use the advice and tips in these articles and videos to get the most out of your dishwasher.

    January 31, 2019

    Replacing upper dishrack stationary or adjustable rollers on Kenmore 665-series and Whirlpool dishwashers video

    By Sears PartsDirect staff

    In less than 15 minutes you can get that upper dishrack rolling smoothly again.

    September 28, 2016

    Dishwasher has no power video

    By Sears PartsDirect staff

    Sometimes you just plain forget to turn the dishwasher switch on, but you might also need to check for faulty wire connections or user interface control.

    January 16, 2015

    How to fix rust spots on a dishwasher dishrack video

    By Sears PartsDirect staff

    It’s easy to get a newer looking dishrack!