Whirlpool dishwasher not draining properly

Common reasons your Whirlpool dishwasher is not draining properly

The most common reasons your Whirlpool dishwasher is not draining properly are a failed drain pump, cracked drain hose or a faulty pump and motor assembly.

  • 35%

    35% of the time it's the Drain Pump

  • 24%

    24% of the time it's the Drain Hose

  • 10%

    10% of the time it's the Pump and Motor Assembly

  • 31%

    31% of the time it's the Something else

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Most common repairs needed to fix a Whirlpool dishwasher

Drain Pump Replacement

A dishwasher that’s not draining properly often has a failed drain pump. The drain pump motor could be bad or the drain pump impeller could be damaged. The drain pump may make a loud noise when the impeller is damaged. The motor may make a loud buzzing noise or not make any noise at all if it isn’t spinning the impeller during the drain portion of the dishwashing cycle. The drain pump is hard to access so you’ll need to have a Sears Home Services Technician check out the drain pump and replace it if it isn’t working.

Drain Hose Replacement

When the dishwasher will not drain properly, a cracked or clogged drain hose could be causing the failure. The drain hose connect to the drain pump and carries wastewater to the sink drain. The drain hose has a check valve to prevent drain water from siphoning back into the dishwasher at the end of the drain routine. A cracked hose or check valve can let water blow back into the tub when the drain pump stops. Accessing the drain hose is difficult so you’ll need to have a Sears Home Services Repair Expert fix the drain hose when it’s cracked or damaged.

Pump and Motor Assembly Replacement

When the dishwasher is not draining properly, the pump and motor assembly that drains the water is often faulty. The motor spins a pump impeller and the impeller that moves the water through the drain hose could be damaged. A faulty motor could also be failing to spin the impeller properly. You'll likely hear a grinding or whining noise when those failures are happening. Have a Sears Home Services Technician repair the dishwasher when a faulty pump isn’t draining the water properly.

What to expect when you experience a Whirlpool dishwasher not draining properly issue

How is the not draining properly problem fixed?

Correcting most not draining properly problems usually involves replacing the drain pump, drain hose or pump and motor assembly. However, there are many potential causes, so a thorough diagnosis is key to fixing the problem. An accurate diagnosis is essential to understanding how much the repair will be.

Sears Home Services recommendations for a dishwasher that is not draining properly

When the dishwasher is not draining properly it can be for many reasons. To avoid replacing unneeded parts we recommend having a Sears Home Services professional perform diagnostic tests to identify the root cause of the problem. Our technicians are experienced at diagnosing all types of dishwasher failures.

What to look out for with a dishwasher not draining properly diagnosis

Diagnosing modern appliances without proper knowledge and training can be difficult. Without using proper diagnostic techniques, fixing your dishwasher problem will only be achieved through changing parts on a hunch. Appliances, especially in the last 10 years, have become extremely advanced, and many models have electronic parts that are difficult to test. DIY repairs on the latest appliance models are becoming increasingly difficult.

Slow or partial drainage in your Whirlpool dishwasher indicates a partial blockage in the drain hose or failing pump. Residual water can reduce cleaning effectiveness next time. Instead of dealing with half-empty cycles, contact a dishwasher maintenance near me. Thorough draining ensures each load ends on a clean, dry note.

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Thorough

James called to give an estimated arrival time. He was professional and personable. He had 2 professional ideas of the problem and found 1 was correct, but he didn't stop there. He did a thorough check of the appliance. 1 small part was needed. He ordered the part to my house. Fortunately, he was able to schedule for the next week, just before Thanksgiving. As before, he called ahead, arrived and quickly fixed the problem. My appliance is working perfectly.

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Kirsten A, Oxford, PA

Service Call

Luke was great. Polite and knowledgeable even though the dishwasher was older than he!

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Daniel

Daniel went above and beyond to fix my dish washer. Very pleasant to deal with.

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Frequently Asked Questions

Why is my Whirlpool dishwasher draining too slowly?
A partially clogged hose, obstructed pump filter, or faulty drain pump motor can lead to poor drainage.
How can I clean the pump filter?
Remove the lower rack and filter cover, then rinse away any food particles or buildup.
Could a failing drain motor cause incomplete drainage?
Yes, if the motor doesn’t spin at full power, water may remain in the tub after a cycle.
What if the hose and filter are clear but draining is still sluggish?
Check under the sink for a clogged connection or air gap, as these can restrict water flow.

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Glossary Terms

A dishwasher impeller is a rotating component within the dishwasher's pump that circulates water throughout the unit during a wash cycle, ensuring efficient cleaning by spraying water at high pressure.

A dishwasher sump is located at the bottom of the dishwasher, serving as a collection point for water during the wash cycle. It houses the main pump and filter, facilitating the recirculation and drainage of water, essential for the cleaning process.

A dishwasher turbidity sensor is an advanced feature that measures the level of food particles and debris in the water, allowing the dishwasher to adjust the wash cycle length and water usage for optimal cleaning efficiency.

Hard water is water that contains high levels of dissolved minerals, particularly calcium and magnesium. It contrasts with soft water, which has lower concentrations of these minerals.

Whirlpool dishwasher not draining? Discover solutions & quick fixes!