MDB6657AWQ Maytag Dishwasher - Instructions

1. Print out the "pump and motor" exploded diagram and label the numbered parts down to #11 (discharge housing assembly).

2. Unscrew the "lower spray arm cap" (#34) by hand (it just twists off), remove the "jump up nozzle" (#1), and lift the "lower spray arm" (#2) and filter guard" (#36) out together.

3. With a torx screw driver, remove the screws holding the "pump cover and secondary filter assembly" (#4), taking note how the assembly was positioned. Be careful not to lose the two plastic "lower spray arm seals".

4. Lift out the "pump housing filter" (#6) and "rinse arm assembly" (#7).

5. With a 5/16 wrench, remove the bolts holding the "discharge housing assembly" (#11). You will likely find a plastic disk just sitting there under the discharge housing assembly. This is the source of your problem. It is the lower plate that has worn loose from the rest of the assembly and the noise is from it being ground by the impeller below.

6. The simplest fix is to order a new "discharge housing assembly" along with gaskets #37 - O-ring (for "pump cover in step #3. Mine was missing.) and #38 - "upper discharge housing gasket. Three parts to order and save your exploded diagram for when you put it back together.

7. Remove the "discharge housing nut" at the top of the old discharge assembly, lift off the "wash arm support", and put both on the new discharge assembly.

8. Insert new seals where they belong and reassemble the dishwasher in reverse order.

Took off old, snapped in new.

It takes about 5 min. to disassembled the lower jet system. As you disassemble, make sure you clean all the filters, and asses the integrity of the filters. If they are broken, you need to replace. Once you get to the impeller, you know it is broken because the lower part is loose. To replace you need to firmly hold the impeller as you unscrew the top screw. If the housing gasket is broken or too loose, replace. Otherwise you will have leak. Refer to your models diagram for proper assembly.

We ordered the replacement part for our Maytag model and when it came we saw that it was different than the original part. The original part had 8 wheels with a higher left hand side. The replacement part had only 6 wheels and no higher side. The replacement part would not pull in and out evenly and was a bit too narrower. We called Parts Select and told them our problem and they are going to refund us in full and take back the part they sent. Alas we will have to buy a new dishwasher. We would use Part Select in the future for replacement parts.
Alice
Cambridge, MA

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.

threw out the broken and put in a fantastically improved new one. very easy (would have done it sooner if I'd known it was that simple to find it online and order it) thanks

Remove bottom rack. Unscrew the retaining ring on the wash arm, remove along with wash nozzle. Unscrew the eight retaining screws on the filter cover and remove (be carefull not to lose the two plastic bushings). Pick off and set aside the wash fan. Remove the six retaining bolts on the discharge housing. Pull up and remove the discharge housing. Remove the gasket (buy a new one, cheap and easier) with small screwdriver. Push gasket into new assembly. Under plastic nut with pliers and take off the plastic bushing that the wash arm rides on. Install new housing assembly with the parts that was taken off in the reverse order. Be carfull when installing the filter cover to make sure the drain outlet is aligned or mated to drain. Gently push down until the filter in down and continue reassembly.


(PS: Never use Sears parts, they extrembly slow as well unable to deliver on time).
Wash your dishes

I took apart the lower spray arm apart and removed the 6 hex screws. I noticed that the little plastic circle thing had been ripped off the dome-shaped thing. I replaced the part and put it all back together.

Was extremely easy to remove that existing rackings(upper and lower), install the new racks and snap in the new spray tower. It now looks like we have a new dishwasher. We are hoping that it will last another 10+ years.
We will recommend your site to friends.

First I turned off the circuit breaker to dishwasher. Then removed the lower spinner and related parts. The water in the bottom needs to be sucked out with a shop vac next, because when the pump screws are removed any remaining water will drain underneath onto the floor. Remove the wash pump and drain rotor.
Remove the front bottom plate to access underneath, unplug the electric motor and thermister. Unscrew both hoses,drain and upper wash arm. Move the locking ring to release the the entire assembly up into the dishwasher.
The kit I bought had most of all the washer parts included, so on reassembly I used the new ones. The rest when back together in reverse order after a good cleaning. Since the thing was apart anyway why not clean up all the filters on reassembly. The kit also came with complete instructions.

Replacing my dishwasher racks was very easy. I followed the guidance on the PartsSelect.com website for replacing the upper rack. Replacing the lower rack was only challenging when I couldn't figure out how to remove the water sprayer from the old rack and place it in the new rack. A quick search on Google.com and I learned to turn the sprayer counter-clockwise to remove it and then clockwise to put it in the new rack. Worked like a charm! I would recommend PartsSelect.com to anyone. Easy to use, parts came quickly, and I appreciated the guidance from others.

Piece of cake. I panicked for a minute before I realized that there was a threaded brass 90 in the inlet valve. It looked like it was the wrong part for a minute. Once I got the 90 reinstalled in the new valve, I had it back together in 10 minutes. It seems to be working better.

turn off breaker
turn off water supply line
note wire color locations on notepad
disconnect 2 spade lugs (pliers)
disconnect inlet line (adj. wrench)
disconnect outlet line (pliers on hose clamp)
remove old valve assembly (4 screws w/nutdriver)
remove ground jumper from old valve
remove inlet pipe ell from old unit (vise & pliers)
clean open end of pipe ell (file)
apply teflon dope tape to pipe threads
install pipe ell on new valve
reorient solenoid 90degrees cw to match Maytag installation
reinstall ground jumper
install new valve assembly in dishwasher
reconnect hose and hose clamp
reconnect inlet line
reconnect spade lugs
turn on supply line, check for leaks
turn on breaker
start washer at appropriate cycle to test water flow
done!

I took off the front bottom panel for an easy access. The valve is located on the left. Shut off water to the dishwasher. Remove the bracket that holds the valve. Remove hoses and 2 wires on the valve switch. Install new valve by revesing the steps above.

I aligned the V-shaped tabs on the inner side of the part with the slots in the mating part and simply pulled the old part out (it was already disengaged from the wheels in the metal rail). I then inserted the new part into the slots. One side went in well, but the other side required the part to be bowed slightly to match up the V-shaped tab with the slot. Then the hard part was getting the wheels in position to snap them on. Once in position, it took a bit of effort to engage the snaps in each wheel. I was afraid of breaking the new part. These snaps are very stiff and even with the notch between them there isn't any give, but I was able to apply enough constant, steady pressure to finally get them to snap in without breaking.