KitchenAid Dishwasher Leaking From Bottom: 7 Ways to Fix it

leaking KitchenAid dishwasher can be a frustrating and potentially costly issue, as it affects the dishwasher itself and can damage the kitchen floor or cabinets beneath it.

Leaks can occur for several reasons, including faulty door gaskets, damaged hoses or pumps, or clogged drains. These leaks can lead to severe water damage and mold growth if left unaddressed.

In this article, we will explore the common causes of a KitchenAid dishwasher leaking from the bottom and provide practical solutions to fix the issue.

Why is your KitchenAid Dishwasher Leaking From the Bottom?

There are several reasons why a Kitchenaid dishwasher might be leaking from the bottom. Some of the most common reasons include the following:

1. Check the door seal

One of the possible causes of a leaky dishwasher is a faulty door seal. You can investigate this problem by checking the rubber seal around the door to see if it’s cracked or damaged. If you notice any issues, you may have to replace the seal.

2. Tighten the spray arm.

Another potential cause of a leaky KitchenAid dishwasher is a loose spray arm. To investigate this problem, ensure the spray arm is tightly secured in place. If you notice a loose spray arm, tighten it to prevent further leaks.

3. Clean the dishwasher filter.

clogged dishwasher filter cause also be responsible for your KitchenAid dishwasher leaking water from the bottom. To investigate this problem, check your filter’s dishwasher and ensure it’s clean—if it’s not, clean it. Doing this will help in ensuring that water flows through the machine properly.

4. Check the float switch.

The float switch in your dishwasher is responsible for making sure that your dishwasher doesn’t overfill. So if you have a malfunctioning float switch, it can cause your dishwasher to leak. To investigate the problem, check the float switch; if you think it’s faulty, replace it.

5. Inspect the drain hose.

Your KitchenAid dishwasher drain hose takes water away from the dishwasher. If the drain hose becomes damaged or clogged, it could cause your dishwasher to leak from the bottom.

To investigate the problem, check the KitchenAid dishwasher drain hose and clean it if it’s clogged or replace it if necessary.

6. Check the inlet valve.

The inlet water valve has to regulate water flow into the dishwasher. If the inlet valve starts malfunctioning, it can cause leaks. To investigate the problem, check and replace the water inlet valve if necessary.

7. Replace the pump and motor assembly.

If you have tried all the fixes mentioned in this article and nothing seems to work, it’s probably an issue with the pump or motor assembly. This is because, over time, components like the pump and motor assembly wear out, which can result in leaks.

If you have a faulty or damaged pump or motor assembly, you may have to replace the entire assembly.

In summary, a KitchenAid dishwasher leaking from the bottom can be caused by several factors. But by checking the door seal, spray arm, dishwasher filter, float switch, drain hose, and inlet valve, you can identify the source of the problem and take appropriate action to fix it.

Replacing the pump and motor assembly may also be a solution.

How to Fix a KitchenAid Dishwasher Leaking From Bottom

If your KitchenAid dishwasher is leaking from the bottom, there are a few possible causes that you can troubleshoot and fix yourself. Here are the steps to take:

1. Tighten the Hoses and Clamps

If your KitchenAid dishwasher leaks water from the bottom due to loose hoses or clamps, you can solve this problem by simply tightening them.

To fix this problem, turn off your dishwasher’s power and water supply. Once you have done that, locate the loose hoses or clamps and use a wrench to tighten them.

Finally, ensure that your connections are secure—this doesn’t mean you should overtighten them, as doing that can cause damage to the hoses or clamps.

2. Replace Damaged Hoses

To replace your damaged hoses, first, start by turning off the power and water supply to the dishwasher. Locate the damaged hoses and remove them from your dishwasher.

Carry the damaged hoses to a home improvement store and purchase new ones of the same type and size. Install the new hoses in the same location where the old ones were taken from and ensure to tighten the clamps properly.

3. Clean the Dishwasher Filter

clogged dishwasher filter can make water accumulate in your dishwasher and ultimately leak from it.

First, turn off the power and water supply to the dishwasher to fix this problem. Afterward, locate the clogged filter and remove it from the dishwasher. Rinse the clogged filter until running water while using a soft brush to remove debris found on the filter. Once the filter is clean, reinstall it.

4. Check the Dishwasher Door Seal

If you notice a damaged dishwasher door seal, you must replace it.

To do this, start by turning off the power and water supply to the dishwasher. Afterward, find the door seal and check for tears, cracks, and other damage.

If it’s damaged, remove it from the dishwasher, take it to a home improvement store, and purchase a replacement. Install the replacement in the same location as the old one. When installing the seal, ensure that you have a tight seal.

5. Adjust the Dishwasher Level

If your KitchenAid dishwasher is not level, it can cause water to leak from the bottom of your dishwasher.

To fix this problem, turn the dishwasher off the power and water supply. Next, use a level to check the alignment of the dishwasher. If it’s not level, adjust the feet of the dishwasher until it rests in a level position.

6. Replace the Pump and Motor Assembly

If your dishwasher leaks from the bottom because of a faulty KitchenAid pump and motor assembly, you must replace it.

To do this, turn off your dishwasher’s power and water supply. After that, locate the pump and motor assembly; remove them from the dishwasher. Carry the assembly to a home improvement store and buy a replacement. Now, install the replacement in the exact location as the old one.

Remember to always turn off the power and water supply to the dishwasher before attempting any repairs or maintenance. It is always best to consult a professional technician if you need clarification on any of these fixes.


How do I know if my dishwasher gasket is leaking?

Here are some signs that your dishwasher gasket is leaking:

  • Water pooling around the base of the dishwasher
  • Water drips from the door when it is open
  • musty smell coming from the dishwasher 
  • Mold or mildew growth around the door gasket

If you find any of these signs, it is essential to have the gasket replaced as soon as possible. A leaking dishwasher door gasket can cause water damage to your home and create a breeding ground for mold and mildew.

To check if your dishwasher gasket is leaking, you can run a full cycle and then open the door to see if there is any water pooling around the base of the dishwasher. You can check for leaks by running your hand along the bottom of the door gasket. If you feel any moisture, then the gasket is likely leaking.

If you think your dishwasher gasket is leaking, it is best to call a professional to replace it. Replacing a dishwasher gasket is not difficult, but it is crucial to ensure it is done correctly to prevent further leaks.

How do you fix a leaking dishwasher gasket?

The following are the steps on how to fix a leaking dishwasher gasket:

  • Unplug the dishwasher: This is for safety purposes.
  • Remove the bottom rack: This will give you more space to work with.
  • Inspect the gasket: Look for cracks, tears, or other damage.
  • Clean the gasket: Use a mild soap and water solution to remove dirt or debris.
  • Dry the gasket: Use a clean towel to remove excess moisture.
  • Apply a sealant: Use a silicone sealant to repair any cracks or tears in the gasket.
  • Replace the bottom rack: Once the sealant has dried, you can put the bottom rack back in place.
  • Plug in the dishwasher: Your dishwasher should now be leak-free.

If the gasket is severely damaged, you may need to replace it. You can purchase a replacement gasket at your local hardware store or online.

The following are some tips on how to prevent your dishwasher gasket from leaking:

  • Clean the gasket regularly: Use a mild soap and water solution to remove dirt or debris.
  • Inspect the gasket for damage: Look for any cracks, tears, or other damage.
  • Apply a sealant: Use a silicone sealant to repair any cracks or tears in the gasket.
  • Replace the gasket if necessary: You may have to replace it if it is severely damaged.
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