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Customer Questions and Answers for Drain Pump by Whirlpool

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Manufacturer Part
4.89 (64)
By: Whirlpool
Part Number: OEM15818271
Manufacturer Part Number: W10421247

Questions & Answers

For Whirlpool Drain Pump (Part Number: OEM15818271)

1 Answer

Rich, the drain hose and drain pipe would need to be inspected for partial clogs. If there are no partial clogs, the drain pump W10421247 would need to be inspected for debris that may be preventing it from draining properly. If there is no debris, the drain pump is failing. Unfortunately, this part has been discontinued and is no longer available.

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1 Answer

hello Kyle, first, suggest you run a dishwasher cleaner like Affresh first through the unit to eliminate any detergent/hard water build-up that can cause possible oversudsing that can lead to poor draining. Next check the drain hose is not restricted, next would be to replace the drain pump, it is part W10421247 which has with it the inlet port flapper and the outlet backflow preventer.

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Richard for Model Number mdbh968aws1

I have a little bit of water in the bottom at end of the cleaning cycle. Checked the drain hose at disposal, it's clear. I hear the drain valve working at the drain cycle and see water going through the disposal. Removed sprayer and plastic filter pieces, all ok. I did not check the drain hose at the pump end under the dishwasher. There is only a little water on the bottom, it empties if I run the cancel/drain button again after done. thnx

1 Answer

Richard, the drain pump W10421247 would need to be inspected for any partial clogs at the openings as well as where the drain hose connects. If there is not a partial clog, the most likely failure would be in the drain pump if it will operate for 2 minutes at the end of the wash cycle.

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1 Answer

Hello Matt, the number given is not a model number, please recheck the dishwasher for the model number and repost your question.

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1 Answer

Mark, that voltage is on the low side, check voltage at your house outlet, if it is ok, I wuld recommend replacing the control board.

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1 Answer

Joseph, You will want to test the drain pump at the start of the cycle to see if there is 120 vac getting to the drain pump. If there is power then this will be a faulty drain pump. If there is no power then this will be a faulty control board.

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1 Answer

Gayle, It's not really the impeller, but you most likely have a " hard" object in the chopper chamber under the impeller, that the chopper blade can't macerate and dispose of. You'll need to remove the pressure dome, impeller, and pump filter to access and clean out the chamber.

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1 Answer

Lovina, Check and make sure the detergent and rinse agent(if used) are not "sudsing" during the wash or rinse cycles. Newer style pumps, don't react well to suds in the water. If that's not the issue, you'll need to remove the lower spray arm, filter assembly, guard and dome, remove the drain baffle, and replace it WP6-919119.

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1 Answer

Kevin, You may want to remove the top, and check the air/water inlet assembly WP99002645 on the left side of the tub, for spray back, or splash over, the water, could run down the injector hose and the valve or clip would appear to leak. You would also want to check and make sure the hose clamp is properly installed and has a "tight" fit on the hose, and tighten the fill hose connection 1/4 turn tighter.

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