Why Is My Dishwasher Leaking

Why Is My Dishwasher Leaking

Water leakage from your dishwasher can be dangerous and also messy. Luckily, with the right knowledge and skills, you can fix the problem at home. So, while you are asking why is my dishwasher leaking? We would love to tell you that the first place to consult for possible answers is your product manual.

Why Is My Dishwasher Leaking
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Apart from the product manual, you can also research your product model online. Most of the best dishwasher companies like KitchenAid, GE, Bosch, and Frigidaire have amazing user-friendly websites. 

However, if you suddenly notice your dishwasher is leaking, we are here to give you some DIY tips. Getting a professional repairer should not be your first resort for a problem you can easily fix is not necessary.

There are different reasons why your appliance is leaking. We will look at some major common causes and repair tips.

The leakage may be coming out from the front or a component (s) from the bottom of the appliance. You have to find the leakage, either repair a hose, pump, seal or look for other miscellaneous parts.

If you prefer learning by video, this article is also explained here.

Common Causes of Dishwasher Leakage 

Video: Top 5 Reasons Dishwasher Leaks

Watch this video to know more about the dishwasher leakage.

Here are a few causes of dishwasher leakage you can check out for below:

Leaking Dishwasher Door Latch and Gasket

When water accumulates under the dishwasher directly, then it is likely there is an opening in the dishwasher door. Ideally, the door latch holds the appliance closed during a wash cycle. It may be loose, bent or not fastening well and hence opens too easily. This is what causes the leak.

You can tighten the door latch using an adjustable wrench to firmly close the opening. If this does not work, you can also install new door latch systems. If the water leakage persists, the tub gasket or door seal might be faulty.

The gasket is a rubber seal that is situated on the dishwasher door. It stops water flow out of the appliance. When faulty, water might be accumulated on the floor in front of the appliance. 

To confirm, check the door seal around the dishwasher door. If any of its sections are worn out or ripped, it is time to change the gasket before you use the appliance again. This is very easy.

Simply soak the new gasket or seal in lukewarm soapy water. This makes it very flexible and its installation easier. You can also tighten the loose ends of the door hinges.


Before you do any type of repairs in your dishwasher, make sure you unplug your appliance from the power source. Also, lay towels on the floor to soak up the water and prevent you from tripping over.

Remember, electricity and water are not a good mix for an amateur repairman.

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Change the Door Hinge

The door hinge is connected to a spring and it let you open and close the dishwasher door. If it is damaged or destroyed, opening and closing the dishwasher door becomes difficult. This leads to water leakage during a dishwashing cycle.

Replace the dishwasher door hinge if it is faulty so that the door can close properly.

Dishwasher Tub

The leak may start from an opening in a worn-out dishwasher tub. This may arise if your dishwasher has seen a fair share of dish loads. Minerals and detergents can destroy the base of the dishwasher tub. This causes water to leak through thereby accumulating under the appliance.

You can fix a leaky tub, but it depends on how long you have been using the unit and how bad it is. If it is a serious issue, you may have to replace the dishwasher completely.

Incorrect Alignment

Normally, the dishwasher should be placed on a level floor. If not, there is every possibility that water will accumulate under the dishwasher. 

To prevent this, place a wedge on the floor just below your dishwasher. 

You must make sure it is level from back to front and right to left. If necessary, adjust the screws on the legs in front meant for leveling using an open-end adjustable wrench or your fingers. You can also measure the appliance and the cabinet and readjust your dishwasher until it is very leveled.

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Faulty or Loose Valves Connections

If you notice water flows out from underneath your dishwasher, then you may have a water valve or hose issues. After some time of use, valves or hose connections inside the appliance can get loose.

You should unplug your dishwasher or switch off the circuit breaker. Then remove the appliance’s toe kick from underneath the dishwasher door. This will enable you to see the circulation hose, water inlet valve, drain hose to ascertain if they are all well connected.

Check if there are loose connections, bad solenoid valves or corrosion. Also, check the clamps if they are holding the drain hose properly on both sides.

Replace any cracked or loose drain hoses to stop the water leakage. 

Bad Dishwasher Detergent

Using regular dishwashing soap is wrong. It causes the excessive formation of soap suds which can lead to water and soap leakage out of the appliance. This can also happen when you pre-rinse your dishes before the full washing cycle.

The soap solution can foam up causing pressure on the door seal which eventually leads to leakage. Always use good dishwasher detergent to avoid this.

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Overfilled Dishwasher

The appliance may be receiving too much water and not properly draining. This pushes the water out of the appliance to the kitchen floor. You must check it and replace the inlet water valve if it is faulty.

Faulty Drainage System

Water continuously flood inside the dishwasher and not drain out properly during a washing cycle if the drainage system is faulty. Check the drain filter below the dishwasher basin or tub to see if it is clogged or blocked. 

This might be the reason the appliance is not draining properly. Replace the drain filter or any other part of the drainage system if they are faulty.

Bad Float Switch

The float switch is found underneath the dishwasher. The function of the float switch is to prevent the appliance from overfilling with water. When it is stuck on something, it will not function properly. 

This causes the dishwasher to overfill with water and water is forced through the door leading to leakage.

Check the float switch and ensure that it is not caught on something. Be sure that the switch is functioning properly. Test it to check if it is working fine and replace it if it’s bad.


Depending on the dishwasher model you have, you may have to check your product manufacturer manual or their company website for more information. 

Leaky Water Pump Seal

The rubber seal around the water pump may wear out over time and leak. Check the seal if it is dripping water from the pump house or motor. If it is, remove the water pump and change the seals around it to prevent further water leakage.

Damaged Heating Element

Heating elements controls the temperature of the dishwasher basin or tub. This is what is responsible for getting dishes clean during a dishwashing cycle and dry them at the end of the cycle. 

Check your appliance’s heating element for any physical sign of dysfunction or damage. For example, control settings issues, faulty wiring or if there is any blown fuse inside the heating circuit. 

This could be true if you notice there is insufficient heat or no heat at all from your appliance during or at the completion of a cycle. 

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If no area or parts mentioned above is leaking, then it is time to remove your dishwasher from under the kitchen counter and troubleshoot following these steps.

Disconnect or unplug the dishwasher from the power source.

Switch off the water supply to the appliance under the sink.

Open the dishwasher and glance under the kitchen counter. Remove the screws that hold the appliance to the kitchen counter.

Roll out the dishwasher from underneath the counter. 

Examine the appliance for any visible indication of water leakage.

Remove the faulty or leaking parts and replace them with new ones.

Then test your dishwasher for any other water drippings.


If this does not work, you may have to call a repairer to look at it. If the leakage persists, you may need a new dishwasher.


Dishwasher leakage issues and repair can be frustrating and might not be on your list of things to do. You can troubleshoot the problem and save a lot of money and time you spend waiting for an expert repair service to come and salvage the situation.

If you had an incidence of water leakage in your kitchen from your dishwasher, you must clean the leakage properly and allow it to dry. You do not want your kitchen floor to stay damp. 

This is because under a damp, humid or moist condition, mold and mildew spores can grow speedily. They are hazardous to health.

If it has, you should take the necessary steps to remove the mold from your kitchen. Drop your comments or questions, we’d love to hear from you.

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