Dishwasher not draining

Common reasons your dishwasher not draining

The most common reasons your dishwasher is not draining are a failed drain pump, cracked drain hose or a defective electronic control board.

  • 31%

    31% of the time it's the
    Drain Pump

  • 22%

    22% of the time it's the
    Drain Hose

  • 17%

    17% of the time it's the
    Electronic Control Board

  • 30%

    30% of the time it's the
    Something else

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Common dishwasher repair parts you may need

Replacing one of these dishwasher parts may fix your problem.

Drain Pump Replacement

When your dishwasher doesn't drain properly, it's likely due to a malfunctioning drain pump. This could be because the drain pump motor is faulty or the impeller inside the pump is damaged. If the impeller is damaged, the drain pump may produce a loud noise. Alternatively, if the motor isn't spinning the impeller during the draining phase of the dishwashing cycle, it may either emit a buzzing noise or remain silent. Since the drain pump is difficult to reach, it's best to have a Sears Home Services Technician examine it and replace it if necessary.

Drain Hose Replacement

When your dishwasher doesn't drain properly, it might be due to a cracked or clogged drain hose. This hose connects to the drain pump and transports wastewater to the sink drain. Equipped with a check valve, the drain hose prevents drain water from flowing back into the dishwasher once the draining process is complete. However, if the hose or check valve is cracked or damaged, water can flow back into the tub when the drain pump stops. Since accessing the drain hose can be challenging, it's best to have a Sears Home Services Repair Expert address any cracks or damage in the hose.

Electronic Control Board Replacement

If your dishwasher isn't draining, and the drain pump isn't running, it's possible that the electronic control board is defective. Typically, the control board sends electrical current to the drain pump during the draining phase of the dishwashing cycle. However, a malfunctioning relay or corrupted logic on the circuit board might hinder this process. Diagnosing whether the electronic control board is faulty can be challenging. To address this issue, it's recommended to have a Sears Home Services Repair Expert inspect and repair the dishwasher if it's not draining properly.

What to expect when you experience a dishwasher not draining issue

How to repair a dishwasher not draining problem

To resolve most drainage issues, typically, you'll need to replace the drain pump, drain hose, or electronic control board. However, since there could be various reasons behind the problem, conducting a thorough diagnosis is crucial for fixing it accurately. Having a clear understanding of the diagnosis is important for determining the cost of the repair.

Sears Home Services offers these recommendations for a dishwasher that is not draining

When your dishwasher isn't draining, there could be various causes. To avoid replacing unnecessary parts, we suggest having a Sears Home Services professional conduct diagnostic tests to pinpoint the root cause of the issue. Our technicians have the expertise to diagnose all kinds of dishwasher problems accurately.

What you should look out for with a dishwasher not draining diagnosis

Diagnosing issues with modern appliances can be challenging without the right knowledge and training. Simply replacing parts without proper diagnostic techniques may not solve the problem. Appliances, particularly those made in the last decade, have advanced significantly, with electronic components that are hard to assess. DIY repairs on these latest models are becoming more complex.

A dishwasher with leftover water in the tub commonly faces a clogged drain or failing pump. Scooping water is tedious—schedule dishwasher service near me.

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


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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 dishwasher not draining?
Check the drain hose, pump, and filter for blockages or clogs.
Could a clogged drain hose prevent my dishwasher from draining?
Yes, if the drain hose is clogged or kinked, it can prevent proper drainage.
How do I fix a dishwasher that’s not draining?
Inspect the drain hose for clogs, clean the pump, and check the filter for debris.
What causes a dishwasher to not drain?
Clogged drain hoses, a malfunctioning pump, or a blocked filter can prevent proper drainage.

Repair Dishwasher Resources

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Glossary Terms

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.

An astragal is a molding or strip that covers or seals the gap between the edges of a pair of doors or windows. Its primary functions are to provide a weather seal, improve security, and improve the aesthetic appearance of door and window assemblies.

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