GU2455XTST0 Whirlpool Dishwasher - Instructions

I followed the PartSelect video to replace the feed tube assembly with spinner and the spray arm seal for the middle wash arm. Washing performance was better, but a couple weeks later the dishes on the bottom rack suddenly stopped getting clean. I decided I probably needed a new chopper assembly, which is identified by PartSelect as the cause of problem for 48% of the cases of dishes not getting clean. Before ordering the chopper assembly, however, I followed the video about how to replace the chopper assembly to determine whether the chopper assembly seemed to be worn out (the video shown at https://www.partselect.com/PS11722146-Whirlpool-W10083957V-Chopper-Assembly.htm). It was worse than I anticipated. I found the holes of the chopper assembly screen blocked by food, and the spinner in front of the screen had broken apart. In addition to finding the pieces of the broken chopper assembly, I discovered a treasure chest of debris, including about 8 pieces of broken glassware, 3 twister ties, a half-inch button, a 3/4-inch screw, and dozens of small pieces of metal. I poured water into the area and used a kitchen baster to suck out the water with all the pieces of debris, finishing the clean-up with paper towels. I ordered a new chopper assembly to replace the broken one, and the part arrived in under 48 hours. I relied on the same video to install the new chopper assembly. The only tricky challenge was getting the new chopper assembly back into place. I first tried needle nose pliers in two sizes, as recommended in the video, but what worked much better for me was using two chop sticks that were each about 1/4 inch square from top to bottom. Needle nose pliers are slanted, but the chopsticks did not vary in thickness and separated the screen from the spinner an even distance apart, making it easier to get the gear shaft on the chopper assembly to align in a straight line with the gear shaft on the pump motor. I also rotated the two gear shafts so the gears of the chopper assembly would mesh correctly with the gears of the pump motor shaft. The video cannot show that step very well because the man's hand blocks vision of how exactly to fit the chopper assembly into place. The video also fails to warn about possible debris around the chopper assembly and to explain how to clean out the debris. After finishing installing the chopper assembly my 14-year-old dishwasher cleaned my dishes as well as a new dishwasher. I spent a total of $110.24 on parts and shipping and invested a couple of hours total. The alternative would have been to spend $800 on a new dishwasher or wash dishes by hand. I am very, very happy with the outcome.

When the top rack stopped cleaning, I tracked down the problem to the food shredder/chopping blade, and then to the impeller that drives the blade. The knob on the impeller had sheared/broken off. That meant removing the motor, and replacing the impeller. Four hours, a band-aid, and a trip to Home Depot later, here are my suggestions

1. Look for videos – this site is awesome, but they don’t have a video on this particular repair. I found 4 that got me close to knowing what I was doing.
2. Do all the “remove internal stuff” - you had to anyway to find the issue with the shredder/cutting blade
3. Take pictures as you move along, you’ll need them when you have to remember the placement of the water line, drainage hose, wired connections etc.
4. You need a 1/4 inch socket set. A 3/8 drive will NOT work (it won’t fit between the shroud and the base). Don’t start working on the repair, unless you have a 1/4 in socket with about a 6" extension
5. Someone at Kitchenaid should be shot for having the waterline connection facing the back of the unit. Use a short adjustable wrench
6. The order comes with a washer, but when you take the impeller off this model, you’ll see you don’t need it.
7. Placement is everything – there was zero clearance between the bottom of the unit and the floor. Placement of the water line, drain hose, and power line was critical – had to re-position the unit about 7 times to get it to “play nice”.
8. Hindsight – only needed to remove the wire harness for the motor (take pictures)
9. Hindsight – gloves are a great idea – sheet metal is unforgiving

I removed the old gasket simply by pulling on it. I compared its length to the length of the new gasket, figuring there would be some trimming to do -- there wasn't. The replacement was exactly the same.
I placed a mark on the center of the new gasket, and marked the center of the mounting groove. I aligned the two marks, and pushed the new gasket into the groove, starting at the center, and worked my way out towards the two ends. After getting a majority of the new gasket to seat by hand, I GENTLY used the tip of a slotted screwdriver to ensure that the New Gasket was completely snapped into place.
The fit was perfect, and no more leaks. This repair was so simple, I'm embarressed for putting it off for so long. ;)

Popped the old housing apart with screw driver, saving internal part, installed part into new housing, placed in posistion, installed two new screws and it worked like charmed. So simple, I have ordered 2nd part to replace opposite side which is not yet broken. Thanks to the terrific phone assistant who convinced me it would work and not have to replace the entire rack which was suggested by a repair man. . . . . . Many thanks! ! ! !

I followed the video directions on line...they were exactly to the point to do the repair.

i asked the vrtual repair stating the problem of my dishwasher machine ,he then give me two possible solution change the water presure switch which i did order the part and installed it and it works now..............thanks partselect.

Disconnected Power, Turned off water valve, disconnected drain return line, disconnected water line, removed two screws on inside-top that was mounted to counter, pulled out dishwasher while feeding power cord, drain line, water line. Turned Dishwasher on it's side and disconnected water line and water fill line from Fill valve Assembly. Disconnected power connector from Valve. Removed one screw from Fill valve assembly and removed Fill valve assembly.
Installed Fill valve assembly and screwed screw back in. Installed Water line and water fill line from valve. Snapped power connector back in. Doubled checked Fill Valve connections to make sure they were tight. Slide Dishwasher back in while lines and power back through to under sink. Made sure Dishwasher was set in place and mounted two screws to counter. Connected water line to water valve and connected discharge line back to it's location. Turn water back on. Plug power back in.
Turned unit on and checked for leaks at the fill Valve assembly, water line and discharge tube.
Saved ~ $ 100.00. Easy job. I wished I didn't wait so long when it was making the noise for so long...Good luck..

I pulled the unit away from the cabinet, unplugged the washer and water line(not long enough to reach) removed two nuts from the underside and replaced the heating unit.

I took out the old one and started in the lower left corner and threaded it all around the edge to make sure the placement and length was correct. Then I came back around with a plastic spatula to firmly seat the gasket into the groove. Worked perfectly and havent had any trouble since!

pull out the dishwasher
lay it on its side
use a 1/4" drive socket with extension and a universal joint to undo the the hidden bolt,
twist the motor 1/4 turn. this is the hard part you have to pull fairly hard and rock the motor around a little to get the o-ring to let the motor slide out.
lube up the new motor with jet dry or soap and insert back it, turn it back 1/4 turn, install the bolt and plug the motor control wires back in, then reinstall it back under the counter

A Mouse friend had seen fit to chew through the original drain line. I used my Model Number, and was able to order the correct part . It arrived the next day. The job itself is fairly straight forward. You will need to access the rear of the machine. This may include shutting off, and disconnecting the water supply line. (Adjustable wrench). Mine is under the sink, on the "Hot" side. You may also need to un-plug the unit. (recommended) . A pair of (Pliers) will be needed for the spring clamp.

The repair was easy. Getting the unit to slide out from under the counter was more time consuming.
After water and power is disconnected, tip the unit over onto one side to gain access to bottom. Look for two white composite plastic posts (insulators) about 2" long each with a single wire inside. Remove the two wire connectors then unscrew the insulators from the old heating element using an adjustable wrench. Inside the box remove the two metal element supports and pull out the old element. Clean and dry the area in and around the openings where the new element will be re-inserted. Carefully place the new element into the holes with the included new rubber washers. Re-install the two metal element supports on the inside of box. On the bottom, re-install the two insulators to the ends of the element, do not to tighten too much to avoid over compressing the rubber washers which could cause premature cracking. Reconnect both wires and check continuity from the door mircro-switch (white-violet) lead to the (white-red) lead on Electronic Controller connector #1 (P6). The circuit thru the element should be good if the Multimeter reads 10-35 ohms. Put the unit securely back under the counter and run a test wash. Works fine now.
I do recommend, if don't know how to use a multimeter or are concerned about accessing the electronic control box; contact a professional.

Removed the front panel of the dishwasher. Unhooked the electrical connection between the dishwasher and the dispenser, which was as easy as unplugging a cord from an electrical outlet. Removed the old dispenser and replaced it with the new one. Replaced the front panel. This was a super easy repair.

I removed the dishwasher from under the counter. This took the bulk of the repair time along with disconnecting the water supply and electrical connection. I had enough slack in drain hoses that I could turn the dishwasher over to replace the motor. I was surprised that there was only one bolt that held the motor in place. I put the motor on, turned the dishwasher upright and slide it back unde the counter and began the long process ofreconnecting everything. I am sureit could have gone faster if I were younger and did not need glasses for close work. Start to finish took me four hours. This was the fourth time I have replaced motors in dishwashers of various makes.

Looked at other side of top rack which still had the stop. Just had to orient the direction of the stop and push it firmly onto the rack arm. Took a couple tries, but it went in and locked. Works perfectly. Inexpensive and easy fix to to very annoying problem.