Models > KDC21B

KDC21B KitchenAid Dishwasher - Overview

Sections of the KDC21B

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Single Roller Wheel – Part Number: WP4162322
Single Roller Wheel
PartSelect #: PS11742305
Manufacturer #: WP4162322
Sold Individually.
$10.25
  In Stock
Rubber Water Delivery Tube – Part Number: WP4171544
Rubber Water Delivery Tube
★★★★★
★★★★★
(10)
PartSelect #: PS11742322
Manufacturer #: WP4171544
This rubber tube carries water from the upper spray arm manifold to the receiver of a dishwasher. This thin walled tube can become brittle over time and crack. If it does, it will lead to poor cleanin...
  No Longer Available
Single Lower Roller Axle – Part Number: WP4162321
Single Lower Roller Axle
PartSelect #: PS11742304
Manufacturer #: WP4162321
This is the axle ONLY. Wheel is sold separately.
$9.75
  Special Order
BASKT-WARE – Part Number: W11175758
BASKT-WARE
PartSelect #: PS12348387
Manufacturer #: W11175758
$91.99
  In Stock
Dishwasher Door Spring – Part Number: WP4162629
Dishwasher Door Spring
★★★★★
★★★★★
(1)
PartSelect #: PS11742311
Manufacturer #: WP4162629
Sold individually.
$35.91
  In Stock
Float Stem Kit – Part Number: W10207863
Float Stem Kit
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(1)
PartSelect #: PS2338895
Manufacturer #: W10207863
This kit comes with the float stem, gasket and switch.
$52.72
  Special Order
Silverware Basket – Part Number: WP8519598
Silverware Basket
★★★★★
★★★★★
(1)
PartSelect #: PS11746015
Manufacturer #: WP8519598
It does not have a cover for any of the sections, but there is a handle at either end so that you can quickly and easily remove it from your dishwasher.
$56.24
  Special Order
Water Inlet Valve – Part Number: WP4171000
Water Inlet Valve
PartSelect #: PS11742317
Manufacturer #: WP4171000
This valve replaces old two coil valves. The attaching solenoid on the valve open and close according to the desired amount of water needed.
$128.94
  In Stock
Motor Shaft Seal and Impeller Assembly – Part Number: 4171314
Motor Shaft Seal and Impeller Assembly
PartSelect #: PS356252
Manufacturer #: 4171314
This kit has multiple gaskets included.
  No Longer Available
Wash Impeller – Part Number: 4162921
Wash Impeller
PartSelect #: PS354977
Manufacturer #: 4162921
This impeller pumps the water to the spray arms.
  No Longer Available
Detergent Dispenser Actuator – Part Number: WP4162568
Detergent Dispenser Actuator
PartSelect #: PS11742310
Manufacturer #: WP4162568
This part releases the doors on the detergent dispenser.
$66.46
  Special Order
Lower Dishrack Only – Part Number: WP4172117
Lower Dishrack Only
PartSelect #: PS11742325
Manufacturer #: WP4172117
This lower dishrack does not include the rollers, axles or corner splash guards. The color of the rack is no longer blue, but light ice gray.
  No Longer Available

Questions And Answers for KDC21B

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Common Symptoms of the KDC21B

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Not cleaning dishes properly
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Leaking
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Will not fill with water
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Will not dispense detergent
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Will Not Start
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Keep searches simple. Use keywords, e.g. "leaking", "pump", "broken" or "fit".
Replace Broken Dishwasher Door Spring
Removed 4 philips head screws on bottom front plates (2) under the dishwasher door, removed old springs and inserted new springs. Then replaced the plates and screws. Replaced both springs even though only one broke. Springs should always be replaced in pairs - as the old good spring will not be as strong as the new one.
Parts Used:
Dishwasher Door Spring
  • John S from Coventry, RI
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    Less than 15 mins
  • Tools:
    Screw drivers
15 of 19 people found this instruction helpful.
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Dishwasher often didn't fill with water.
Remove power, either unplug the unit or locate and turn off the circuit breaker. There is power under the dishwasher even if it is not running.

Use the nut driver to remove both lower panels to gain access to the bottom of the dishwasher.

I suspected the overflow switch and used the ohm meter to discover the resistance of the switch, with no water in the washer, measured anywhere from a couple of ohms to 40 ohms or more and of course it should be less than one ohm.

There was no sign of any leakage or other problem so I wanted to keep the job simple and replace only the actual micro switch.

Problem! The micro switch is mounted on the back side of the float stem kit and visibility is severely limited. About all you can see are the switch terminals and the head of the phillips screw that holds the microswitch on the rest of the float stem kit.. You'll definitely need a small mirror.

I first pulled the wires from the microswitch terminals. Then I used a small phillips screw driver to remove the screw holding the switch and the first thing that happened is the small white float lever fell out. (I didn't know that it was even there because of the poor visibility. Ugly surprise!)

I spent 1/2 hour or more studying how the lever went in and found that the cirular end of the lever fits into a circular depression in the assembly body and was HELD IN BY THE SWITCH. (Now it's really getting ugly!)

The problem then is how to get the lever back in place and have it stay there while placing the micro switch back in place. There just isn't any easy way to do that. If only the switch and lever were one piece it would have been so simple.

Aha!

I placed and aligned both the lever and the microswitch on the float assembly body that I received. Using a couple of small pieces of electricians tape I taped the microswitch and lever together so they were one piece. Then I carefully (very carefully) removed the switch/lever
"assembly" that I made and eased it into position onto back side of the dishwasher float stem assembly body. When the switch is almost in place there is just barely room to get the tip of your finger in there and seat the rounded end of the lever into the depression. After seating the lever, carefully replace and tighten the phillips screw holding the switch in place. Then remove the electricians tape.

Replace the wires on the micro switch terminals, replace the front panels, put your tools away, and by golly, you're done.

This repair is not for the faint-hearted nor for those with fat fingers or who tend to be klutsy. It took me three or four attemps and a couple of hours to get the microswitch and float lever into place. But I think it was worth it as I didn't have to remove the dishwasher, play with water lines, or remove the full float assembly thus avoiding creating other problems that might likely result in water leaks and additional repairs..

If you decide to try this repair, good luck. It can be done but it is tough.
Parts Used:
Float Stem Kit
  • Lorrin from Longview, WA
  • Difficulty Level:
    Very Difficult
  • Total Repair Time:
    More than 2 hours
  • Tools:
    Nutdriver, Screw drivers
11 of 14 people found this instruction helpful.
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dishwasher not washing well
I turned off the CB for the DW and the water supply to the DW.
I disconnected the electrical connections on the water inlet valve. I then removed the panels from the lower part of the dishwasher, I pulled the water inlet line off and then the water return line off.

I replaced the valve. The only problem I ran into is that the inlet portion required a new brass "ell" - the one that was on the old piece would have of course been ok, however, it was solidly in place in the old water inlet valve

the only other issue, and one that would probably be commonly encountered - when I first went to turn off the water supply to the DW, the valve leaked - I was fortunate to be able to take the valve apart, clean it and put it back in place
Parts Used:
Water Inlet Valve
  • Joseph from Raleigh, NC
  • Difficulty Level:
    Easy
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Nutdriver, Screw drivers, Wrench (Adjustable)
7 of 9 people found this instruction helpful.
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