Models > MDB7100AWW > Instructions

MDB7100AWW Maytag Dishwasher - Instructions

All installation instructions for MDB7100AWW parts

These instructions have been submitted by other PartSelect customers and can help guide you through the dishwasher repair with useful information like difficulty of repair, length of repair, tools needed, and more.

All Instructions for the MDB7100AWW
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worn out silverware basket

  • Customer: Dayna from Logan UT
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 95 of 158 people found this instruction helpful
Ordered replacement basket online at much better price than available localy. When I recieved it discovered that it did not include the handle, but was suprised to see it labeled as "Genuine Maytag Parts" ( I realy expected a knock-off replacement part for the price difference). I was able to remove tha handle from the old basket and install it on the new one. Job done. No problem

Dishwasher leaked from lower door area

  • Customer: Michael from Grand Rapids MI
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 93 of 154 people found this instruction helpful
Observed the way gasket was installed including slight overhang on each side.
I simply pulled out the old gasket, starting at one end. I then wiped down the area with a dampened rag and pressed in the new gasket exactly the way the old one came out. It is important not to stretch it, just push it into place ending up with the same overhang on both sides.
Total time less than 5 minutes with no tools.

Roller disconnected from upper rack, due to a cracked clip

  • Customer: Bernard from Boulder CO
  • Difficulty: Easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 89 of 151 people found this instruction helpful
Once I figured out how to get the endcap off the roller track (allow several minutes, because it was designed by some dork), I slipped the old roller off the track, put the new roller on, and clipped it to the rack. Then I put the track cap back on (really easy once you've figured out how to get it off) and it was good as new.

As for how the cap comes off, it's difficult to describe. But it may help you to know that the cap, despite what it looks like at first, is actually surprisingly long and folded on top of itself. Pulling it directly out doesn't work; you have to unfold it before there's any chance of getting it out.

dishwasher door leaks

  • Customer: jerry from vernon CT
  • Difficulty: Difficult
  • Time to Complete: More than 2 hours
  • Tools Required: Screw drivers
  • 55 of 59 people found this instruction helpful
I ordered and replaced both the door gasket (easy) and inner door seal (difficult) to try and correct a leak during operation. The door gasket was easily replaced. However, the inner door seal was a bit more trouble. After removing the inner door I found that the old inner seal needed to be removed and surfaces thoroughly cleaned of old build-up of dishwasher soap residue, in order to allow the sticky back tape side of door seal to properly stick to the door. There also was a plastic cover over the wire bundle that needed to be cleaned. The inner door seal was the exact length, so proper positioning of the sticky back was very important.
Upon reassemly the leak still existed and I was unable to correct the leak. Further inspection indicated that the basic tub/body of the dishwasher might be slightly distorted due to age and may not create seal with door seal as originally designed.
I guess I need to find a new dishwasher, at this point.
A word to the wise: Check to see if the tub/body is still in good condition.

lower rack had rusted and tines were breaking off

  • Customer: Antoinette from Long Beach CA
  • Difficulty: Really easy
  • Time to Complete: 1- 2 hours
  • Tools Required:
  • 39 of 39 people found this instruction helpful
The lower rack of my dishwasher was falling apart right before my eyes. Tines were breaking off and there was so much rust that my dishes were beginning to become stained. After reading the comments posted at PartsSelect, I decided to try replacing the rack instead of buying a whole new dishwasher. From the posted comments I was able to figure out that the spray tower could be easily removed if I pressed down on it and turned it counterclockwise. After removing the old rack and sliding in the new one, I simply reversed the order, pressing the plastic tower down and turning it clockwise. It was SO simple I was embarassed that I had waited so long to attempt it, and that I had considered replacing a perfectly good dishwasher just because the lower rack was falling apart! I'd also like to add that the rack came in two days! Great service, great price, great web site. Thanks!

Grinding noise during Wash and Rinse

  • Customer: Stephen from Sante Fe NM
  • Difficulty: Easy
  • Time to Complete: 30 - 60 mins
  • Tools Required: Nutdriver, Pliers, Screw drivers
  • 40 of 45 people found this instruction helpful
First off, I must give thanks to Partselect.com for excellent service. They had the parts I needed, a Diagram of how the parts should go into the Dishwasher, and shipping was very quick and reasonable priced. Thank you Partselect.com.


After dinner we heard our Maytag MDB5100AWW dishwasher start grinding during its wash cycle. Needless to say we found this quite concerning, as this is not what a healthy dishwasher should sound like. After fiddling around with it, I started researching the issue and found Partselect.com where it was stated the “Discharge Housing Assembly (Discharge Pump Housing)” was a common failure point. After disassembling the “Pump and Motor” section of the dishwasher, it was confirmed that the Discharge Housing was indeed broken. Since this Dishwasher is over 8 years old, I figured that I might as well replace a few other parts as well, since I'm in there working on it.


Following the blow-up image of the Pump and Motor picture;

Unscrew part 34

Pull out part 1

Lift Part 2, which is attached to part 36

Unscrew part 5 (6 of them) from part 4, be careful not to loose part 3, sitting inside part 4

Lift out part 6 and 7

Unscrew part 8 and lift out part 9

Unscrew part 27 (three of them) and lift out part 11

The bottom plate of this part is the broken part.


Now, since we are in here replacing a part, we might as well replace a few other parts and give this dishwasher a little longer life. I opted to replace the following parts as well, being that my dishwasher was over 8 years old and the gaskets were showing some age.

Part 4 – Pump Cover and Secondary Filter Assembly; I replaced this part because food often gets caught inside the filters and will throw off the balance during a wash or rinse, thus putting premature wear on bearings and o-rings. My filter had a bunch of food on one side, and the only way to remove the food was to slit open a section of the filter, thus damaging the filter screen.

Part 37 – O-Ring that goes inside the Pump Cover and Secondary Filter Assembly. O-rings are rubber and do wear with age. My dishwasher didn't even have this o-ring; now it does.

Part 3 – Lower Spray Arm Seal; I noticed when pulling these parts out that the hard water in our living area was making these somewhat brittle. When ordering these, get two of them, as the picture indicates. If you order one, the package only contains one, and not two was the image shows it should have.

Part 11 – Discharge Housing Assembly (Discharge Pump Housing). This is the part that is making all the grinding noise. The new part will show that it is built a little differently. It appears that Maytag figured out the weak design of this part and made the replacements stronger.

Part 17 – Even though I ordered this, you don't need to order this part if you order the Part 10 kit. The part 10 kit will include this o-ring. Because its an O-ring, I replaced it; as stated above, o-rings do breakdown.

Part 25 – Pump Gasket; This part should really be called the Pump Housing Gasket, as it isolates the Pump Housing bucket and the Dishwasher tub. I bought this because my original gasket was looking pretty nasty and was coming apart.

Part 10 – Seal Kit (Motor/Pump) (Motor/Pump Impeller and Seal Assembly), this kit includes several components that if purchased separately would easily be twice the cost of this kit. Again, seals and Motor Pump seals are a good thing to replace when needing to do work inside the dishwasher.


Continuing on from the previous dis-assembly list;

Unscrew part 12 and remove part 14, 15 and 16.

Unroll part 17 (o-ring) and remove part 18.

Unscrew parts 19 and carefully remove part 20, being VERY careful to not loose part 39.

Lift out part 22, which will include the bearing inside of part 22.

Pry out part 24 with a pick (the replacement is in the kit of part 10).

To remove part 25, you must Remove part 12 of the Door Assembly (see the Door image) to reach the motor element.

Next unscrew part 14 of the “TUB” i

no power

  • Customer: Robert from Johnson VT
  • Difficulty: Easy
  • Time to Complete: Less than 15 mins
  • Tools Required: Nutdriver, Screw drivers
  • 37 of 37 people found this instruction helpful
remove the eight screws that hold the inside door cover to gain access to the door switch.
remove the four wire conections and replace with new new switch

The Soap Dispenser would not open duirng wash cycle

  • Customer: Roger from Silver Spring MD
  • Difficulty: Easy
  • Time to Complete: 30 - 60 mins
  • Tools Required: Screw drivers
  • 36 of 37 people found this instruction helpful
I suspected that the wax motor had gone bad based on reviews I had read. The repair requires a TORX bit to remove seven screws holding the plastic cover on the inside of the door. I sat in a chair with the door resting on my knees and took the screws out. Once open, the two wax motors are under the cover and easily accessible. You simply pull the wax motors out and detach two wire plugs. You should note how the wires are attached. The wire plugs were a little difficult to pull off but with a little effort they came straight off. Once new wax motors were installed, the soap dispenser opened.

I was also using a gel dishwasher detergent and was told that, for some reason, it might have begun to act like glue and this might also have prevented the soap dispenser from opening. I switched to powder and that did not solve the problem leading me to replace the wax motors. The soap dispenser spring seems a little weak so I have continued using powder.

Plastic wheel fell off and melted

  • Customer: David from sleepy hollow NY
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 66 of 127 people found this instruction helpful
Stuck new wheel on, time to find and order part on partselect 2 min, time to open package and install part 1 min.

Total job 3min.

broken upper rack roller

  • Customer: Richard from San Jose CA
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 65 of 126 people found this instruction helpful
snapped on new roller and job done

Roller broken on top rack, left side.

  • Customer: Fred from Cherryville NC
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 65 of 127 people found this instruction helpful
First, removed end cap in steel sliding upper rail, second, removed broken roller, third, attached new roller, you can look at other rollers to see how it goes on, fourth, feed new roller into track, replace end cap. Takes less than 10 min, saved 85.00 bucks.

broken part

  • Customer: roger from guilford VT
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 64 of 125 people found this instruction helpful
clipped in the replacements and installed the assembly. Easy and thanks, PartSelect.

Broken roller on rack

  • Customer: donald from Westminster CO
  • Difficulty: A Bit Difficult
  • Time to Complete: 30 - 60 mins
  • Tools Required: Pliers, Screw drivers
  • 65 of 129 people found this instruction helpful
Took off old part. Modified new roller w'knife. Found a nut and bolt in scrap pile. Attached.

dishwasher tub overfilled between uses and flooded kitchen

  • Customer: michael from cambridge MA
  • Difficulty: Easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Nutdriver, Pliers, Screw drivers, Socket set
  • 35 of 43 people found this instruction helpful
Remove lower cover to expose the motor, valves and electrical connections. turn off water supply and electrical circuit breaker. Disconnect leads from float switch. Remove float switch with a single phillips head screw. Replace with new one and attach leads---very easy.

Remove water inlet electrical connections--remember which goes to which connector. Disconnect hot watter supply with open ended box wrench.
Remove water inlet valve from washer wall by unscrewing two sheet metal screws. Use 1/4" socket and 3" extension for this. Use pliers to release the hose clamp holding the rubber water line onto the valve outlet stem. Reverse this sequence to intall the new switch. Moderately easy. Have sponge and paper towels to soak up spills when you do the disconnects.
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Dishwasher racks were all rusted and the coating was wore off.

  • Customer: Sharon from Kewadin MI
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 33 of 41 people found this instruction helpful
Just took the racks out installed the new ones in no tool required.

I will go through partselect.com again. Had a very good esperience with them.
All Instructions for the MDB7100AWW
16-30 of 822