Models > WU400

WU400 Maytag Dishwasher - Overview

Get Parts and Repair Help for WU400

If you know the dishwasher repair part you need, you can browse the list of all parts on the WU400, or you can search by name or part description. You can also find your part by where it is located on the WU400 by selecting a section below. If you’re not sure which part you need, you can narrow your search by selecting a common symptom and we’ll show you the repair parts most likely to fix your dishwasher. We’ve also included any installation videos we have for WU400 parts. Installation instructions provided by other do-it-yourselfers will help guide you through your repair.

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$2.70

Screw

This screw is sold individually.

$2.70

Hose Clamp

$2.70

Screw

This screw is sold individually.

$2.70

Screw

Sold individually. Lock washers are used with screws when vibration from an appliance may cause the screw to loosen. Lock washers are also used in the electrical components of an appliance to ensure an electrical connection is not lost.

$5.40

Hose Clamp

This hose clamp is sold individually.

$2.70

Screw

This screw is sold individually.

$51.11

Fill/Drain Hose Assembly

This hose assembly is used for portable dishwashers.

$4.19

Inlet Hose Gasket

This high pressure inlet hose washer is black. It is an inch in diameter, made of rubber, and used with many washing machines, refrigerators, and dishwashers.

$2.70

Hose Clamp

Note: This part has been updated by the manufacturer. It may appear different but will still function the same as the original.

$4.04

O-Ring Seal

Search Instructions
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Detergent Cup would not open during wash cycle

  • Customer: Robert from Taylor MI
  • Difficulty: Really easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Nutdriver, Screw drivers
  • 16 of 16 people found this instruction helpful
This repair is very simple. Partselect.com sells a repair kit for this problem that you can use but for simplicity the entire unit is not that much more. First remove the four outside lower philips head screws on the inside of your dishwasher door. Support outer door panel while removing screws. This will remove the outer door panel to gain access to the det... read more

Detergent Cup did not work

  • Customer: Reavis from Asheville NC
  • Difficulty: Easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Screw drivers, Socket set
  • 6 of 6 people found this instruction helpful
I would recommend getting the entire unit. I could have replaced the electrical component only, but the other parts were deteriorating.

I removed the 4 screws in the lower side of the door and removed the front.

I lossened the 6 screws holding the detergent cup. This was done with a small hex wrench.

I replaced the dispense... read more

badly damaged gasket

  • Customer: John from Lomax IL
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 7 of 9 people found this instruction helpful
the coupling for the water hookup for my rollaway dishwasher was very badly damaged. After looking everywhere including authorized dealer and repair places, on-line at the manufactures parts website, I finally broke down and ordered the entire hose assembly. When it arrived, I simply used a toothpick to carefully remove the new gasket from the new part and p... read more