How to Replace the Check Valve on a KitchenAid KUDK03ITWH2

The KitchenAid KUDK03ITWH2 is a residential dishwasher installed under the counters of your home. The dishwasher has a check valve in the bottom of the filter assembly that prevents water from flowing back into the dishwasher once it has exited the appliance. The check valve is made of rubber, and it will break down over time. If the check valve fails, you must disassemble the filter housing, remove the existing check valve and install a new one.

Screwdriver
Needle-nose pliers

Instructions

- 1
  Turn off the dishwasher's power supply by turning off the breaker in your home's service panel.
- 2
  Open the dishwasher door and remove the lower dish rack.
- 3
  Lift the tab on the top of the water supply line, located behind the lower spray arm. Rotate the water supply tube clockwise to release the lower wash arm. Remove the lower wash arm from the dishwasher.
- 4
  Use a screwdriver to remove the screws on the top lower wash arm support and filter assembly, and remove the component from the dishwasher.
- 5
  Remove the screw securing the foreign object protector, located at the front of the filter housing and to the left of the round sump pump inlet protector. Remove the foreign object protector.
- 6
  Remove the screw securing the sump pump inlet protector to the dishwasher, and remove the protector.
- 7
  Remove the existing check valve from the check valve slot on the right side of the sump pump housing using needle-nosed pliers.
- 8
  Insert the new check valve into the check valve slot.
- 9
  Reassemble the dishwasher by reversing the steps taken to disassemble it.
- 10
  Restore power to the dishwasher.

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