Maytag
Dishwasher

Model #DWU7400AAE Official Maytag dishwasher

Here are the diagrams and repair parts for Maytag DWU7400AAE dishwasher, as well as links to manuals and error code tables, if available.

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

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This is the number corresponding to the part on the diagram / schematic

Showing 10 of 171 parts

Dishwasher Door Seal (replaces 902894)#1

Tub Diagram

Dishwasher door seal

Part #902894
Replaced by #WP902894
?
Manufacturer substitution
This part replaces 902894. Substitute parts can look different from the original.
BEST SELLER
In Stock
$55.61 | 
10% OFF 
Was: $61.79
Dishwasher Circulation Impeller#14

Pump & motor Diagram

Circulating

Part #902461
Replaced by #WP902461
?
Manufacturer substitution
This part replaces 902461. Substitute parts can look different from the original.
In Stock
$29.09 | 
15% OFF 
Phone Price: $34.09
Dishwasher Door Insulation#20

Door Diagram

Foam seal

Part #903233
Replaced by #WPW10117748
?
Manufacturer substitution
This part replaces 903233. Substitute parts can look different from the original.
This item is not returnable
In Stock
$23.29 | 
18% OFF 
Phone Price: $28.29
Dishwasher Water Inlet Valve (replaces 99001359)#2A

Tub Diagram

Water valve

Part #903400
Replaced by #WP99001359
?
Manufacturer substitution
This part replaces 903400. Substitute parts can look different from the original.
In Stock
$36.79 | 
12% OFF 
MSRP: $42.00
Dishwasher Dishrack Wheel#2

Racks Diagram

Dishwasher dishrack wheel

Part #903093
Replaced by #WP903093
?
Manufacturer substitution
This part replaces 903093. Substitute parts can look different from the original.
This item is not returnable
In Stock
$10.49 | 
16% OFF 
Phone Price: $12.49
Float#32

Tub Diagram

Float

Part #912687
Replaced by #WP99002363
?
Manufacturer substitution
This part replaces 912687. Substitute parts can look different from the original.
This item is not returnable
In Stock
$6.49 | 
13% OFF 
Phone Price: $7.49
Dishwasher Nut#37

Tub Diagram

Float palnut

Part #911265
Replaced by #WP911265
?
Manufacturer substitution
This part replaces 911265. Substitute parts can look different from the original.
This item is not returnable
In Stock
$4.39 | 
19% OFF 
Phone Price: $5.39
Dishwasher Dishrack Track Roller Assembly#29

Tub Diagram

Tub wheel

Part #912548
Replaced by #WP99002342
?
Manufacturer substitution
This part replaces 912548. Substitute parts can look different from the original.
In Stock
$8.40 | 
11% OFF 
Phone Price: $9.40
Dishwasher Float Switch#33

Tub Diagram

Water switch

Part #900882
Replaced by #WP99002560
?
Manufacturer substitution
This part replaces 900882. Substitute parts can look different from the original.
In Stock
$31.76 | 
14% OFF 
Phone Price: $36.76
Dishwasher Wire Harness Retainer#39

Tub Diagram

Cable clamp

Part #400321
Replaced by #4396672
?
Manufacturer substitution
This part replaces 400321. Substitute parts can look different from the original.
In Stock
$13.79 | 
13% OFF 
Phone Price: $15.79

Symptoms common to all dishwashers

Choose a symptom to see related dishwasher repairs.

April 20, 2023

Why can't I adjust the dishwasher rack height?

By Lyle Weischwill
Main cause: damaged rack height adjuster
Read more
April 20, 2023

Why won't my dishwasher fill?

By Lyle Weischwill
Main causes: water supply problem, stuck overfill float, clogged water inlet valve screen, water inlet valve failure
Read more
April 20, 2023

Why isn't my dishwasher getting dishes clean?

By Lyle Weischwill
Main causes: improper loading, low water temperature, improper detergent dosage, detergent dispenser failure, spray arm or pump problems
Read more
April 20, 2023

Why is my dishwasher leaking?

By Lyle Weischwill
Main causes: damaged or stuck spray arm, leaking door seal, damaged door hinge, leaky heating element water seal, cracked water supply line
Read more
April 20, 2023

Why does my dishwasher stop mid-cycle?

By Lyle Weischwill
Main causes: broken door latch, tripped circuit breaker, broken heating element, faulty vent fan, sensor failure, control system problem
Read more
April 20, 2023

Why won't my dishwasher start?

By Lyle Weischwill
Main causes: light switch beside the sink turned off, lack of power, bad dishwasher door switch, control system failure, wiring problem
Read more
April 20, 2023

Why won't my dishwasher drain?

By Lyle Weischwill
Main causes: clogged kitchen sink drain, clogged drain hose, drain check valve damaged, drain pump failure, control system problem
Read more
April 20, 2023

Why does my dishwasher door drop open too fast?

By Lyle Weischwill
Main causes: broken door spring, damaged or broken door hinge
Read more
April 20, 2023

Why is my dishwasher noisy?

By Lyle Weischwill
Main causes: glass or popcorn kernel stuck in the chopper blade, drain line vibrating against the cabinet, debris in wash pump or drain pump
Read more

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

How to replace a dishwasher door latch assembly

By Lyle Weischwill
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 it yourself.

Repair difficulty
Time required
 30 minutes or less
October 1, 2016

How to replace a dishwasher user interface control

By Lyle Weischwill
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 settings. Follow these instructions to replace it yourself.

Repair difficulty
Time required
 30 minutes or less
April 1, 2014

How to replace a dishwasher thermal fuse

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.

November 13, 2022

7 Tips to Get Your Dishwasher Ready for the Holidays

By Lyle Weischwill
7 Tips to Get Your Dishwasher Ready for the Holidays

Find professional tips that can help you get your dishwasher ready for the holidays.

Read more
December 23, 2021

How to reset a Whirlpool dishwasher

By Lyle Weischwill
How to reset a Whirlpool dishwasher

Learn how to reset a Whirlpool dishwasher when its control freezes up.

Read more
August 17, 2021

How to read a wiring schematic video

By Lyle Weischwill
How to read a wiring schematic video

Learn how to decipher symbols so you can buy the right part for your problem.

Read more

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