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Maytag
Dishwasher

Model # WU400 Official Maytag dishwasher

Here are the diagrams and repair parts for Official Maytag WU400 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 205 parts  |
Hose Clamp 900440
Hose clamp

Part #900440

Replaced by #WP596669

?
Manufacturer substitution
This part replaces 900440. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$4.37 | 
19% OFF Phone Price : $5.37
In Stock
Washer Screw 211294
#30

Installation accessories diagram

Washer screw

Part #211294

Replaced by #WP90767

?
Manufacturer substitution
This part replaces 211294. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$4.37 | 
19% OFF Phone Price : $5.37
In Stock
Inlet Hose 200688
#25

Installation accessories diagram

Inlet hose

Part #200688

Replaced by #WP76314

?
Manufacturer substitution
This part replaces 200688. Substitute parts can look different from the original.
$25.89 | 
19% OFF Phone Price : $31.89
In Stock
Timer Screw 910832
Timer screw

Part #910832

Replaced by #WP179051

?
Manufacturer substitution
This part replaces 910832. Substitute parts can look different from the original.
This item is not returnable
$4.46 | 
18% OFF Phone Price : $5.46
In Stock
Inlet & Drai 200672
#23

Installation accessories diagram

Inlet & drai

Part #200672

Replaced by #WP76314

?
Manufacturer substitution
This part replaces 200672. Substitute parts can look different from the original.
$25.89 | 
19% OFF Phone Price : $31.89
In Stock
Dishwasher Washer 910069
Dishwasher washer

Part #910069

This item is not returnable
$32.33 | 
16% OFF Phone Price : $38.33
In Stock
Screw 910187
Screw

Part #910187

$8.49 | 
11% OFF Phone Price : $9.49
In Stock
Screw Relay 910708
Screw relay

Part #910708

This item is not returnable
$4.22
In Stock
Screw 911050
Screw

Part #911050

Replaced by #WP4312464

?
Manufacturer substitution
This part replaces 911050. Substitute parts can look different from the original.
This item is not returnable
$4.33
In Stock
Thumb Nut 911102
#14

Decorator trim parts diagram

Thumb nut

Part #911102

Replaced by #M0282005

?
Manufacturer substitution
This part replaces 911102. Substitute parts can look different from the original.
This item is not returnable
$5.99
In Stock

Most common symptoms to help you fix your dishwashers

Choose a symptom to see related dishwasher repairs.

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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 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 is my dishwasher leaking?

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

Read more

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 does my dishwasher door drop open too fast?

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

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Why does my dishwasher stop mid-cycle?

Main causes: broken door latch, tripped circuit breaker, broken heating element, faulty vent fan, sensor failure, contro…

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Why can't I adjust the dishwasher rack height?

Main cause: damaged rack height adjuster…

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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 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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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 heating element

How to replace a dishwasher heating element

Dishes not drying as fast as they should? The dishwasher heating element could be on the fritz. Here's how to install a …

Read more
Repair difficulty
Time required
 45 minutes or less
How to replace a dishwasher high-limit thermostat

How to replace a dishwasher high-limit thermostat

Follow these steps to replace the high-limit thermostat in your dishwasher if prevents the heating element from heating.…

Read more
Repair difficulty
Time required
 30 minutes or less
How to replace a dishwasher diverter motor

How to replace a dishwasher diverter motor

Upper spray arms not getting water? The diverter motor could be broken. Use this guide to replace it.…

Read more
Repair difficulty
Time required
 30 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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