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 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.

Video: Top 5 Reasons Dishwasher Leaks

Watch this video to know more about the dishwasher leakage.

Common Cause of Dishwasher Leakage 

The following are the reasons your dishwasher will leak:

  • Leaking Dishwasher Door Latch and Gasket
  • Change the Door Hinge
  • Dishwasher Tub
  • Incorrect Alignment
  • Faulty or Loose Valves Connections
  • Bad Dishwasher Detergent
  • Damaged Heating Element
  • Leaky Water
  • Pump Seal
  • Bad Float Switch
  • Faulty Drainage System
  • Overfilled Dishwasher

Leaking Dishwasher Door Latch and Gasket

How does a faulty gasket and door latch cause a dishwasher to leak?

A faulty gasket and a door latch will cause your dishwasher to leak. The gasket and the latch are the two primary components of the dishwasher that stop water from leaking out from the dishwasher door.

The door latch holds the washing machine closed during a wash cycle, while the gasket acts like a sealant preventing any leakage. If the gasket is loose, bent, or not fastened well and hence open too easily this causes a leak.

How do you fix a faulty dishwasher latch?

To fix your faulty dishwasher latch, tighten the door latch using an adjustable wrench. This will firmly close the opening. You can also install new door latch systems entirely. After that, if you notice any water leakage from the dishwasher, the tub gasket or door seal is faulty.

What is a dishwasher gasket?

A dishwasher gasket is a rubber seal on the dishwasher door. It stops water from flowing out of the appliance. When faulty, water will be accumulated on the floor in front of the appliance. To confirm if your dishwasher gasket is faulty, 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.

Replacing a dishwasher gasket is very easy. Soak the new gasket or seal in lukewarm soapy water. This makes it very flexible and its installation easier. Pull out the old gasket, and then carefully insert the new gasket into the dishwasher gasket grove, on the door. You can also tighten the loose ends of the door hinges.


When water accumulates under the dishwasher directly, then it is likely there is an opening in the dishwasher door.

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.

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Change the Door Hinge

How does a faulty door hinge cause water leakage in a dishwasher?

A faulty dishwasher door hinge, when damaged or destroyed, will prevent the opening and closing of the dishwasher door. This will lead to water leakage during a dishwashing cycle. The dishwasher door hinges control the opening and closing mechanism of the dishwasher door. The door hinge is connected to a spring, and it lets you open and close the dishwasher door. If the door does not shut properly or is left in a constant open position, water will leak out of the dishwasher.

Replace the dishwasher door hinge if it is faulty so that the door can close properly. This will solve the leak.

Dishwasher Tub

How does a dishwasher tub cause a leak?

A dishwasher tub will cause a leak when there is 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, accumulating under the appliance. How long you have used the machine and how bad the leak is are the factors that will determine if you service a leaking tube or replace the dishwasher entirely.

Incorrect Alignment

What is an incorrectly aligned dishwasher and how does it cause a water leak?

An incorrectly aligned dishwasher is one that was not installed level to the floor. An incorrectly allied dishwasher will cause a water leak because the incorrect alignment will create a slanting water level. The slanting water level causes an unbalanced water pressure inside the dishwasher.

The side of the dishwasher with the most pressure will leak out water to balance the pressure. To prevent this, place a wedge on the floor just below your dishwasher. Adjust the wedge till the dishwasher is level on all sides.

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

How to check if I have a faulty or loose valve connection on my dishwasher?

To check if you have a faulty valve connection on your dishwasher check for water leakages beneath the dishwasher machine. If you notice water flows out from underneath your dishwasher, then you have a water valve or hose issues. To resolve this, unplug your dishwasher or switch off the circuit breaker.

Remove the appliance’s toe kick from underneath the dishwasher door. This will enable you to access the circulation hose, water inlet valve, snd drain hose. Fasten any loose connection or clamps, and replace broken solenoid valves.

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

Bad Dishwasher Detergent

How does a bad detergent cause a dishwasher to leak?

Using a bad detergent in a dishwasher will cause a leak because it causes the excessive formation of soap suds. The soap solution will foam up, causing increased pressure on the door seal which eventually leads to leakage. These excess studs 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. Always use good dishwasher detergent to avoid this.

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Overfilled Dishwasher

Will an overfilled dishwasher leak?

An over filled dishwasher with an old door gasket will leak, because of increased pressure from the dishwares. The increased wash load implies the appliance will receive too much water. The excess water implies that the dishwasher will not properly drain. 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

Will a faulty drainage system cause a dishwasher to leak?

A faulty drainage system will clog your dishwasher, cause standing water in your dishwasher, and also cause the dishwasher to leak. Water will 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

Will a bad flow switch cause my dishwasher to leak?

A bad flow switch will cause a dishwasher to leak. 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.

The float switch is found underneath the dishwasher. Check the float switch and ensure 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

Can a leaky water pump seal cause my dishwasher to leak?

A leaking water pump seal will cause your dishwasher to leak. The rubber seal around the water pump will wear out over time and this will cause a leakage. To find out, check the seal if it is dripping water from the pump house or motor. If so, remove the water pump and change the surrounding seals to prevent further water leakage.

Damaged Heating Element

Heating elements control the temperature of the dishwasher basin or tub. This 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. 

Check out other related dishwasher articles:

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How to troubleshoot a leaking dishwasher

  • Remove your dishwasher from under the kitchen counter
  • 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, take the necessary steps to remove the mold from your kitchen. Drop your comments or questions, we’d love to hear from you.

 Why Is My Dishwasher Leaking — Related FAQs

How to Clean up Dishwasher Floods in Your Kitchen

To clean up dishwasher floods in your kitchen, do the following:

  • Turn off the water supply to the machine.
  • Turn off the electric supply to the machine to prevent electrocution.
  • Clean up as much water as you can with a towel.
  • Empty your cabinets.
  • Using a vacuum cleaner, clean up the remaining water.
  • Use a dryer to dry your kitchen completely.
  • Take out all the damaged materials from the kitchen.
  • Replace or repair your dishwasher.
  • Deodorize and sanitize the area.
  • Rebuild and restore the damaged area.

Does Insurance Cover Dishwasher Flooding?

Insurance will cover any damage caused by a flooding dishwasher as long as the malfunction occurred suddenly. However, they will deny your claim if you have a dishwasher that has been malfunctioning for a while. If you have been mishandling your dishwasher, your insurance claim will also be denied. 

Ensure you keep your dishwasher in proper working condition. If you notice any problem with your new dishwasher, ensure to have it fixed immediately. Immediately you have a dishwasher flooding, take pictures of the damages, then call your insurance company. 

How Do You Get Rid of Excess Studs In A Dishwasher?

To get rid of excess studs in your dishwasher, follow these steps:

  1. Fill the dishwasher with one gallon of cold water then close the door. Do not forget to latch the door. 
  2. Pump the cold water out of the dishwasher. To do this,, select any cycle on the dishwasher, then wait for a short while (about 20 seconds). After that, press the reset/start button to pump out the water in the dishwasher. It will take about two minutes to empty the dishwasher altogether.

How Do I Protect the Floor Under My Dishwasher?

To protect the floor under your dishwasher, install a dishwasher tray. Your hardwood floor will deteriorate if you let water stand on it. To prevent this, install a tray with a drain under the dishwasher. This will provide an extra layer of protection for your floor. 

You can also use an elevated pedestal to protect your floor from the dishwasher. This is an aesthetic way of protecting the floor. You can easily make your pedestal using plywood and a 2 x 12-inch wood.     

Why Does My Dishwasher Fill with Water When Not On?

Your dishwasher fills with water when it is not on because the drain pipe has fallen flat on the floor. The drain pipe now sends drain water into your dishwasher. A faulty check valve prevents used water in the sink from flowing back to the dishwasher. 

To resolve the problem of your dishwasher getting filled with water when not on, elevate the drain hose. Use a zip tie to fasten your drain pipe to prevent it from falling to the ground. 

Why Is Water Coming Out Of My Dishwasher Air Gap?

Water will come out of your dishwasher drain air gap when there is a blockage in the air gap tube. The air gap prevents dirty water from flowing back into the dishwasher. To resolve this, clean the air gap, then plug the drain line under the sink. 

To clean the air gap, take off the cover and clear any debris blocking it. Also, inspect the drain pipe for blockages. Check the drain pipe and make sure it is not damaged.  

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