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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.

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

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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
Screw 910647
Screw

Part #910647

Replaced by #W11233072

?
Manufacturer substitution
This part replaces 910647. Substitute parts can look different from the original.
$16.79 | 
11% OFF Phone Price : $18.79
In Stock
Hinge Screw 910673
#42

Tub assembly (series 01) diagram

Hinge screw

Part #910673

Replaced by #WP4159193

?
Manufacturer substitution
This part replaces 910673. Substitute parts can look different from the original.
This item is not returnable
$5.06 | 
17% OFF Phone Price : $6.06
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
Screw Relay 910708
Screw relay

Part #910708

This item is not returnable
$4.22
In Stock
Screw 910187
Screw

Part #910187

$8.49 | 
11% OFF Phone Price : $9.49
In Stock
Dishwasher Washer 910069
Dishwasher washer

Part #910069

This item is not returnable
$32.33 | 
16% OFF Phone Price : $38.33
In Stock
Inlet Hose 911251
Inlet hose

Part #911251

Replaced by #WP903404

?
Manufacturer substitution
This part replaces 911251. Substitute parts can look different from the original.
$82.69 | 
7% OFF Phone Price : $88.69
In Stock
Spray Clamp 200900
Spray clamp

Part #200900

Replaced by #WPW10548433

?
Manufacturer substitution
This part replaces 200900. Substitute parts can look different from the original.
This item is not returnable
$2.51 | 
28% OFF Phone Price : $3.51
In Stock
Seal Kit Wit 900629
#6

Pump parts diagram

Seal kit wit

Part #900629

Replaced by #WP910934

?
Manufacturer substitution
This part replaces 900629. Substitute parts can look different from the original.
This item is not returnable
$4.39 | 
19% OFF Phone Price : $5.39
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 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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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 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 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 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 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 door latch assembly

How to replace a dishwasher door latch assembly

If the dishwasher door doesn't click shut, a broken door latch is a likely cause. Follow these instructions to replace i…

Read more
Repair difficulty
Time required
 30 minutes or less
How to replace a dishwasher user interface control

How to replace a dishwasher user interface control

The user interface control houses the selection buttons and display. If it fails, you can't select the cycle and setting…

Read more
Repair difficulty
Time required
 30 minutes or less
How to replace a dishwasher thermal fuse

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 t…

Read more
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

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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Top questions about Sears and Sears PartsDirect

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