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Customer Questions and Answers for Lower Washarm by Whirlpool

4.89 (64)
By: Whirlpool
Part Number: OEM18043143
Manufacturer Part Number: WP99001788

The Lower Washarm is an OEM replacement part for Whirlpool dishwashers. Positioned at the bottom of the dishwasher tub, it rotates during the wash cycle, distributing water and detergent evenly across the lower rack. 

Over time, wash arms can become clogged with food debris or mineral deposits, reducing water flow. Physical damage such as cracks or warping can also impede the wash arm's rotation and affect its cleaning performance.

Color: Gray

Symptoms of a faulty lower wash arm include:

  • Inadequate cleaning of dishes on the lower rack
  • Uneven or inconsistent water spray
  • Clogged or obstructed spray nozzles
  • The arm not spinning or rotating correctly

This OEM Whirlpool part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore models.

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Questions & Answers

For Whirlpool Lower Washarm (Part Number: OEM18043143)

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Answer

Hello Trina! You will need to make sure that you have the correct amount of water entering the machine. Once filled, the water should be right at or touching the bottom of the heating element. If you do not have the correct amount of water, you will have some sort of filling issue with your valve. Your valve is part number WP99001359. Check this and let us know!

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Answered by AppliancePartsPros.com   |   Wednesday, May 18, 2011

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