Why Is My Dishwasher Leaking?

Dishwasher leaking

There is nothing more frustrating than having to clean up after your appliances. A leaky dishwasher can be the result of several factors. Even small leaks can cause structural damage to your flooring in your kitchen. Repairing your leaky dishwasher through a repairman can be expensive and stressful- unless you consider yourself handy, then repairing your dishwasher can be an easy process.  It is important  to know where to check for leaks and how to fix them. Below we’ve provided you with a list of common parts that fix a leaky dishwasher.

WARNING: Before attempting to work on any appliance, make sure that all power (electricity) and utilities (water and gas) have been turned off and/or disconnected on the appliance. Read more


A defective pump and/or pump seal may be the cause of a dishwasher leak. The function of the pump is to circulate water inside the dishwasher, and in some models, drain the water as well. The pumps sits a the bottom of your dishwasher and is made up of two compartments.

The pump housing will have some type of rubber gasket that seals it to the bottom of the dishwasher. The rubber gasket can dry out, become worn or damaged, and thus create a leak. Each compartment of the pump also has it’s own seal that may be damaged as well. Leaks from these parts are not very noticeable until you remove the bottom front panels to inspect for leaks. Find replacement pumps here: Dishwasher Pumps

Door Gasket

If water is leaking around the front of your dishwasher, the problem may be with it’s door gasket. The door gasket or seal, is made of soft rubber or vinyl that travels along the doors edge to create a watertight seal. When the door gasket ages, it becomes less flexible and even brittle. If you find that your your door gasket has lost it’s touch, it must be replaced. Find replacement door gaskets and seals here: Dishwasher Door Gaskets

It is important that you first check that your door gasket is properly aligned with the door into the tub opening.

Water Inlet Valve

The water inlet valve feeds water from the main water line into the dishwasher. This part is located behind the lower kick plate. Here you will find either copper, rubber, or a braided hose which is the water inlet supply – inspect this component to make sure it is not the source of the leak. The “outlet” part of the valve will have a rubber or plastic hose that typically connects to the side of the tub. Check for any cracks or tears in the hose and injector tub, as well as the plastic body of the valve itself. If you find any damaged, these parts must be replaced. Find replacement water inlet valves and components here: Dishwasher Water Inlet Valves

Dispensers & Grommets:

The detergent dispenser and rinse aid dispenser may also be the cause of your leaky dishwasher. These parts are generally located on the inner door panel of your dishwasher. The compartment may be screwed onto the panel of the dishwasher and have a gasket around it to prevent leaks. Other dishwashers have a hinged door on a compartment that is set into the panel itself;these dispensers have a rubber grommet to make a watertight seal around the latch. If the gasket or grommet is damaged or worn, it will need to be replaced. Find your replacement dispensers & grommets here: Dispensers and Gaskets & Grommets

Spray Arms

If your dishwasher’s spray arm is made of plastic, it can become warped or cracked. If it is a metal spray arm, it can pull open at the seams or become bent. Some of the holes in the spray arms can get clogged or blocked, preventing soap and water from spraying on to the dishes. This can cause a leak if that area being sprayed is not sealed. Remove your spray arms to check for any cracks or distortions. Also check the holes on the spray arms for any blockage – you can clean these yourself or simply replace them if it is a daunting task. Find your replacement spray arms here: Spray Arms

Float & Float Switch

If your dishwasher is leaking, it could be overfilling due to a problem with the float, or the float switch directly under the float. The float is located inside the tub at the bottom of the dishwasher and the switch is located beneath the tub directly below the float. When water enters the dishwasher the float is lifted along with the water level. When the float reaches a certain height, It then triggers the switch to close the water inlet valve. If the float or switch is defective, the water will not be turned off and may leak from the dishwasher. If the plastic float part is cracked or damaged, or the switch is defective, you can find replacement parts here: Dishwasher Floats

Hose Clamps & Hoses:

The hose clamps in your dishwasher secure the drain hose and circulating hose to the dishwasher pump. Behind the removable kick plate at the base of the dishwasher, you will see hoses and clamps attached to the pump. If the clamps have come loose or the hoses have cracks in them, this could be the cause of your leak. Be sure to check that clamps on both the drain hose and circulating hose are properly placed. If your hose or clamps need to be replaced, you can find replacement parts here: Drain Hoses and Accessories

We hope that this blog was helpful in diagnosing your leaky dishwasher! Don’t hesitate to check out the rest of our blog for more appliance DIY maintenance tips.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s