DU450 Dishwasher - Instructions

Peeled off the old foam strip, cleaned with rubbing alcohol, let dry completely, applied new foam strip,replaced door interior done I wish repairing relationships with fiance and kids were one tenth this easy.

Removed the lower Front panel, removed the (2) hoses from the Pump Assembly, Removed the Plastic Sprayer Recirculating Tube, than removed the (6) screws that hold the pump assembly in the washer basin, removed the assembly from the unit.
Disassembled the pump unit (6) screws, removed and replaced the (2) water impellers and bottom seal, reassembled everything and all is well. This machine is 22 years old and my local parts supplier said that parts were no longer available for it because of its age, well I have news for him PartSelect.com has any part I need!

Dealer phone quote = $250. DIY repair = $55.
Turn-off DW electrical circuit breaker and shut-off hot water supply. Remove lower Front Access Panel and Toe Panel. Disconnect hot water supply, corrugated drain hose, electrical connection, and uncounter mounting brackets. Slide-out DW (being careful not to scratch flooring) and gently tip DW onto its back side. Rotate Ring-Lock at underside of Tub and (from inside the Tub) carefully lift out Motor-and-Pump assembly. At the Motor-and-Pump assembly, unscrew Center Spray Nozzle and remove Lower Spray Arm and lv Filter. At the end of the Impeller, remove Chopper Screw, Chopper, Chopper Plate (rotate 1/4 turn) and Chopper Wear Ring. Remove Motor Mount Screws and Motor Shield. Loosen Impeller {NOTE: left-hand thread} from motor shaft by the holding Motor Fan stationary and unscrewing Impeller. Pull apart the Motor and Impeller; discard old Impeller. Gently and thoroughly clean the internal surface of Housing Assembly seal with a toothbrush and soapy water. Carefully reassemble in the reverse order using the new Impeller. (Prophylactically, I also replaced the Motor "O" Ring and Pump Gasket.) DW works perfectly; no leaks!

Easy to change. Just pull firmly on old gasket, clean surface with soapy water. Align tabs on new gasket, push into place a tap firmly with handle of a screwdriver and taps pop into place. Was done in about 40 minutes.

The repair was fairly simple. The hardest part was figuring out if this was the part I needed or not. After studying the inerds of the dishwasher door and the detergent cup mechanism, it seemed like this part would do the trick.

Here's how the mechanism works . . . the plastic stopper at the end of the bi-metallic strip latches the detergent cup in place. If these strips are bent away from the spring mechanism / plastic cam enough, the stopper will not latch on the cam (as was the case with mine). So, I needed to replace the bi-metallic strip. This part comes along with a new cam and spring.

The actual replacement of the parts is simple. The parts come with pretty good installation instructions.

Good luck . . .

It was so easy , I first put one side of the clamp on the little rack area in the center of the upper rack then pushed the other side on. It took less than five minutes. No tools needed. Julia

I replaced the old basket with the new one. Fit perfectly, now I do not have silverware falling through the cracks!

First of all, rather then spending the 44 dollars on the main door seal simply cut yours in halve and trim a quarter of an inch from the disintegrated ends and use superglue and glue these ends together. this glued end will now be up top and in the middle and new clean ends will be down in the corners. next I removed the plastic door panel using a torxhead screwdriver, I just stuck the new inner foam pad on the old one. Then I glued rubber washers to the inner frame about 1/8 thick in the top 2 corners only. Finally I reattached the plastic door being careful not to tighten the torx head bolts just tight enough. It's dry and working good.

First I had to unhook the electric, water line and drain hose. Then slide out the dishwasher. Took several days to find the drain hose - local stores only carried a 6 ft hose and I needed a 7 ft. Once I found it online, purchased it and recieved it I put it all back together and all is good.

Unscrewed old nut, inserted new nut into new spray arm and screwed the assembly back in. Took less than one minute. Requested the 3-5 day delivery and received parts on second day. After examining the old and new parts it appeared the nut was the only part I would have needed, but since parts were less than $5 each I did not want to take a chance. Total cost was $16, the shipping being the most expensive item but much cheaper than paying for a service call.

I simply popped the old units off and popped the new units into place. Very, Very easy!!! No stress repair!

slid the part in the groove (left side)

Took off the float, the jam nut was hard to get off, we ended up breaking the bottom piece of the float to get it off, but that was okay because we had a new float. The new float went on real easy and the jam nut went back on real easy. The foam insulation strip was real easy to get off we got a good hold of one end and striped it off slowly so there was nothing left on the door, then we cleaned the surface and put on the new insulation strip. We ran dishwasher to test it and there was no leak. Awesome. Cheap and easy to repair. We were impressed.

I ordered the new spray arm and nut, snapped them together, screwed the nut onto the screw and started a load of dishes. That's how simple it was. Glad I found your website. Thanks.

Removed four screws on bottom plate. Located repair site on outside of cabinet. Had to hook spring on bottom rear plate by brail. Then attached linkage to spring and ran stiff wire through linkage to raise it above arm. Called a man with stronger but larger hands had him stretch the spring while I guided linkage over arm and into the slot using the wire. Removed stiff wire with needle nose pliers and reassembled front plate.