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KitchenAid
Dishwasher

Model # KDC21AD Official KitchenAid dishwasher

Here are the diagrams and repair parts for Official KitchenAid KDC21AD dishwasher, as well as links to manuals and error code tables, if available.

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  • 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”.

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

Error Codes

Model diagram and schematic

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ALL PARTS
Showing 10 of 328 parts  |
Gasket 116202
#13

Fill and overfill diagram

Gasket

Part #116202

Replaced by #WP8531743

?
Manufacturer substitution
This part replaces 116202. Substitute parts can look different from the original.
BEST SELLER
$27.67 | 
18% OFF Phone Price : $33.67
In Stock
Adapter 110552
#4

Fill hose and cord kdc-61a diagram

Adapter

Part #110552

Replaced by #WPW10254672

?
Manufacturer substitution
This part replaces 110552. Substitute parts can look different from the original.
BEST SELLER
$37.70 | 
14% OFF Phone Price : $43.70
In Stock
Screw SD-17-11
#15

Fill hose and cord kdc-61a diagram

Screw

Part #SD-17-11

Replaced by #WP4159387

?
Manufacturer substitution
This part replaces SD-17-11. Substitute parts can look different from the original.
This item is not returnable
$4.33
In Stock
Roller 240683
#3

Lower rack diagram

Roller

Part #240683

Replaced by #WP4162322

?
Manufacturer substitution
This part replaces 240683. Substitute parts can look different from the original.
This item is not returnable
$4.02 | 
20% OFF Phone Price : $5.02
In Stock
Screw SC-117-52
Screw

Part #SC-117-52

Replaced by #WP912618

?
Manufacturer substitution
This part replaces SC-117-52. Substitute parts can look different from the original.
This item is not returnable
$4.39 | 
19% OFF Phone Price : $5.39
In Stock
Switch 116270
#12

Fill and overfill diagram

Switch

Part #116270

Replaced by #W10207863

?
Manufacturer substitution
This part replaces 116270. Substitute parts can look different from the original.
$34.01 | 
15% OFF Phone Price : $40.01
In Stock
Screw SD-8-43
Screw

Part #SD-8-43

Replaced by #W10856125

?
Manufacturer substitution
This part replaces SD-8-43. Substitute parts can look different from the original.
This item is not returnable
$4.39 | 
19% OFF Phone Price : $5.39
In Stock
Inlet Valve 242905
#7

Fill and overfill diagram

Inlet valve

Part #242905

Replaced by #WP4171000

?
Manufacturer substitution
This part replaces 242905. Substitute parts can look different from the original.
$93.89 | 
6% OFF Phone Price : $99.89
In Stock
Screw SD-36-29
Screw

Part #SD-36-29

Replaced by #WP693304

?
Manufacturer substitution
This part replaces SD-36-29. Substitute parts can look different from the original.
This item is not returnable
$4.33
In Stock
Hose Clamp 240202-3
#37

Wash and drain pump diagram

Hose clamp

Part #240202-3

Replaced by #3363365

?
Manufacturer substitution
This part replaces 240202-3. Substitute parts can look different from the original.
This item is not returnable
$8.39 | 
11% OFF Phone Price : $9.39
In Stock

Most common symptoms to help you fix your dishwashers

Choose a symptom to see related dishwasher repairs.

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Why does my dishwasher door drop open too fast?

Main causes: broken door spring, damaged or broken door hinge…

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Why don't my dishes get dry?

Main causes: not using rinse aid, rinse aid dispenser failure, broken heating element, malfunctioning vent, drying fan f…

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Why won't my dishwasher fill?

Main causes: water supply problem, stuck overfill float, clogged water inlet valve screen, water inlet valve failure…

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Why won't my dishwasher start?

Main causes: light switch beside the sink turned off, lack of power, bad dishwasher door switch, control system failure,…

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Why isn't my dishwasher getting dishes clean?

Main causes: improper loading, low water temperature, improper detergent dosage, detergent dispenser failure, spray arm …

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Why is my dishwasher noisy?

Main causes: glass or popcorn kernel stuck in the chopper blade, drain line vibrating against the cabinet, debris in was…

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Why won't my dishwasher drain?

Main causes: clogged kitchen sink drain, clogged drain hose, drain check valve damaged, drain pump failure, control syst…

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Why can't I adjust the dishwasher rack height?

Main cause: damaged rack height adjuster…

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Why is my dishwasher leaking?

Main causes: damaged or stuck spray arm, leaking door seal, damaged door hinge, leaky heating element water seal, cracke…

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Most common repair guides to help fix your dishwashers

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

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How to replace a dishwasher water inlet valve

How to replace a dishwasher water inlet valve

If your dishwasher fills constantly or won't fill at all, the water inlet valve has failed. You can replace it in about …

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Repair difficulty
Time required
 30 minutes or less
How to replace a dishwasher detergent dispenser

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 i…

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Repair difficulty
Time required
 30 minutes or less
How to replace a dishwasher door outer panel

How to replace a dishwasher door outer panel

If your dishwasher door is dented or you want it to match your cabinets or other appliances, this guide shows how to rep…

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Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your dishwashers

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

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5 Holiday Cleaning Tasks Essential to Boosting Your Home’s Image

5 Holiday Cleaning Tasks Essential to Boosting Your Home’s Image

Get tips on completing essential holiday cleaning tasks to brighten your home.…

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How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

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