DU9400XT4 Whirlpool Dishwasher - Instructions

Disconnect unit and remove from under counter. remove lower spray arm, tip over dishwasher on it's back, diconnect wires from motor , unscrew drain fitting rotate motor mounts to and lift pump and motor assembly up and out from inside the dishwasher. thoughly clean all parts during pump disassembly( under running water and a toothbrush ... Read more works well) . Looking at a parts diagram,and using your memory from disassembly replace the new seals and put it all back together, with patience you can do anything and use common sense.

Ordered both drain & wash impeller kit and the drain check valve with o-ring. Decided to test the cheaper drain check valve first. Pulled dishwasher out from wall & adjacent cabinetry; removed drain hose from disposer and drained as much water as possible; "jacked" side of dishwasher to gain access to drain hose and drain check valve; us ... Read more ed pliers to remove hose clamp; placed flat pan underneath to catch remaining water drainage; unscrewed drain check valve; tested under bathroom faucet--determined faulty; replaced with the new one, restored connections, reset dishwasher in proper location; voila--fixed! Plan to return the unneeded impeller kit.

Grinding Noise when running. I was not sure of problem and thought that a new Dishwasher may be needed if motor was the problem. After taking the bottom rack and spray arms out I came across my first problem. I believe it was the impeller design that has a 1in hex nut with a bolt in middle that needed to be removed. I needed a 90 degree 1 ... Read more in wrench to hold impleller while I removed Bolt. Luckly I have a friend that is a mechinist who made me a wrench.
After that the grinding cause was discovered - Broken glass that grinded the cermic shaft that is over motor shaft. I did not small drops of water under motor during grinding due to damaged cermic shaft.
$24 and 2 days later my dishwasher is as good as new. Sugguest you sell a 1in 90 degree hard plastic wrench for holding impeller which bolt is removed.
Thanks
PS. - Best part of your site is Parts detail which was very helpful for me to understand assembly.

Follow diagram that comes with the repair kit

Well, after I got the the dishwasher apart I realized the problem was not the wash impeller kit, it was the pump/ motor asembly. we deicided to replace the machine. the hardest part was holding the impeller from turning while removing the screw. there is a hex on top of the impeller you must hold in place but, if the machine is old, the h ... Read more ex is brittle,It will break as mine did. you will need to disconnect and take the washer from under the cabinet, and wedge a piece of wood into the motor to hold it. Then loosen the screw and inspect the components. 10 years old, it was more cost effective to replace the dishwasher. i emailed for a request authorization to return. partselect responded promptly with the autorization i needed to return the part. The service was good, and I would use partselect again.

I removed the rubber boot on the top of the water dispersal unit ( stainless steel wand ) by turning it counterclockwise and the wand came off with ease. I then removed the top unit under it by removing the 8 torx screws and removed it. Under the unit is a cover with 1 torx screw to be removed and removed the cover to access the unit. I w ... Read more as unable to loosen the 1/4" nut on the shaft as it was very tight so I had to remove the unit and lock the motor armature with a piece of wood and removed the bolt. Using the kit I purchased I installed the new parts as required and it works as good as new.

The whole problem started with the upper vent on the door being plugged up with a whole bunch of labels that had been washed off of a bunch of tin cans that were washed prior to recycling them. Te high water float was also gummed up for the same reason and overflowed on the floor, I pulled it up and out and cleaned it up also, it works as good as new.

My wife noted wood floor bucking up around dishwasher - pulled dishwasher out from counter, tipped it on it's side, looked underneath, & noted slight corrosion on top of motor -

Took motor/pump assembly completely off of dishwasher (comes out from the bottom) by flipping four little plastic cams on motor to the side & then to ... Read more ok pump apart (starting at top & working down) till I got to the impeller/motor shaft seal.

Found plastic impeller worn through into two pieces & little spring thingy under the grinder-upper thingy broken.

Ordered Drain & Wash Impeller kit - got it a few days later - installed (new motor shaft seal didn't seem to be quite the same as far as fit, so I didn't use it - just used the impeller & new spring thingy)

Put it all back together & runs fine - no more leaks - (now just have to figure out what to do about warped wood flooring - oh well, it's old & is probably time for whole new kitchen floor anyway)

Note: This particular Kenmore model made by Whirlpool - takes Whirlpool parts.

Note 2: Needed only screwdrivers to do this whole thing - would have been a really quick/easy repair if I had known what the problem was & how it all comes apart. took a little time to figure it out. (I am a rank amateur at dishwasher repair)

Easy. Removed screws at top holding dishwasher to counter. Turned off water to dishwasher. Unhooked water supply line. Electrical and waste lines were long enough to leave connected and pull dishwasher out, set on side. Pull off electrical connector. Use pliars to compress spring holding water line to dishwasher, remove that line fr ... Read more om valve. Use nut driver to remove old one, and replace with new one. Teflon tape on water connection to sink. Do everything in reverse.
done.

Water was not being sprayed thru the arms. I opened the dishwasher, removed/unscrewed the spray arms and wash impeller (black plastic wheel that directs the water) and then noticed that the part below the wash impeller had broken into pieces. There was only a metal ring and it was supposed to have a spring attached to it. I replaced the r ... Read more ing/spring below the wash impeller using the part from the Drain and Wash impeller kit. The dishwasher works great now.

It was my first mechanical fix. Use the web to diagnose, find the specs of the appliance and use common sense and you can do it yourself too.

By the way, the parts from this site arrived the next day.

It just snaps back in but it was a very tight fit and took two people to force it in. Plus I had no instructions and hadn't seen it before it broke so it took a little time to figure out where it was supposed to go. The arm doesn't connected to anything except the rack. I guess water just shoots up into it from below.

The dishrack came in one box I opened the box snapped on the rollers and the bumpers and put it in the dishwasher, could not have been easier Thank you partselect

Removed the existing dispenser door, took off old spring. Slid new springs on pin, got it situated between the correct parts of the door. Popped it back on the pin inserts. Twisted spring into springing action position, voila. It was repaired. No repairmen. No additional costs, fees, nor extra time waiting on repairmen.

I pulled off the old clips and easily replaced them with the new clips and popped on the wheels.
I replaced 8 clips and 8 wheels in less than 15mins

This product comes in a bottle with a brush like Liquid Paper. It goes on incredibly easy. A second coat might be needed. I wanted to prevent rust from setting in so I covered the scratches and dings. The paint is a little brighter since my washer is 10 years old but it still looks great.

Removed 5 or 6 screws replaced O ring,Srewed cover back on ,no more leak.