How to Fix a Leaky Dishwasher

Start with the wet area, then shut it down

A puddle beside a door corner gives you somewhere useful to look. We'd check the rubber seal and anything caught against it first, because dirt, looseness or a trapped utensil can keep the door from sealing. What you find tells you whether to clean, reseat or arrange a replacement.

Before inspecting anything, unplug the dishwasher or switch off its breaker, then close its water valve beneath the sink. Keep power and water off throughout these checks. Wipe up water with towels or a sponge so the floor doesn't become slippery.

These visible checks give you a starting point across dishwashers. Use your model's instructions for part-specific work. Keep the machine in place and leave panel removal and internal repairs to a technician.

Where the water appeared points to the next check

Look at the puddle and any dried water marks on the floor or sides of the dishwasher. Dried stains can point to a smaller leak even when there's no fresh water. A leak underneath can stay hidden, with a mold-like smell as a possible clue to an older leak.

Describe the location as precisely as you can when booking help. “Water at the left door corner” gives the technician a more specific observation than “leaking from the bottom.”

Check the parts you can reach

With power and water off, work through the visible checks in order. Each result points to the next move.

1. Inspect the door gasket for residue, looseness or damage. Clean soil or reseat a loose section; arrange a model-specific replacement if the rubber is torn or missing.
2. Remove anything caught between the door and tub. Rearrange dishes that touch the seal or block a spray arm. The door should close without an item in its path; if it doesn't, check the latch.
3. If suds escaped, check the product used in the cycle. Use automatic-dishwasher detergent for future cycles; if no suds appeared, continue to the hardware check.
4. Look for a loose latch or door screw without removing a panel. Tighten only the loose hardware described below. A bent or broken latch needs a model-specific replacement.
5. If water remains in the tub, check the accessible filter and the drain connection under the sink. If standing water persists after the filter is clean, leave the dishwasher off and arrange service.
6. Look under the sink for an obvious kink or problem at the visible drain connection. If water is coming from a hidden connection, underneath the machine or inside the cabinet, leave it off and book service.

Look for dirt, looseness and damaged rubber

Open the door and examine the rubber gasket around it. Look for food residue, loose sections, cracks, tears, flattened areas and missing pieces, especially where water appeared along the front edge or corners.

A dirty gasket can keep the door from sealing properly, so visible residue calls for cleaning first. A loose section may need securing back into position using your model's instructions. Tears or missing pieces call for a replacement matched to the dishwasher.

Let the condition of the rubber guide your next move. If it's clean and intact, check for trapped items and loading problems too, since either can interfere with the door closing properly.

Clean the seal and put loose sections back

On a KitchenAid dishwasher, start by wiping the gasket with a clean, damp cloth. If stubborn dirt remains, use a toothbrush with warm, soapy water on those areas. You're removing the soil that can stop the rubber from sealing against the door.

For a Whirlpool dishwasher, mild soap, water and a sponge are also suitable for a soiled gasket. Keep this job focused on the dirty seal. For separate filter or spray-arm maintenance, use the methods matched to your machine when cleaning the rest of the dishwasher.

If you find mold or mildew on a KitchenAid gasket, use 3% hydrogen peroxide to clean it. That treatment is for visible mold or mildew, while the damp cloth and toothbrush address ordinary soil.

Secure a loose gasket back into place using your model's instructions. On Whirlpool and Maytag dishwashers, reseating may resolve looseness, while damaged rubber needs replacing. For a damaged KitchenAid seal, check the replacement guidance (opens in a new tab) and arrange a model-specific replacement.

KitchenAid says gasket replacement by a licensed technician may be covered when the dishwasher is under warranty. Check your product warranty when booking.

Clear the door seal and spray arms

Check between the door seal and the tub for silverware or large food particles. On Maytag dishwashers, items caught there can keep the door from shutting or sealing properly. Remove anything trapped against the seal.

Next, look at the racks. On KitchenAid dishwashers, keep dishes from protruding into the door seal, reduce overloaded racks and leave the spray arms clear. Misdirected spray is another possible source of water at the front door.

Check the door's path as well as the space inside each rack. A dish or utensil blocking closure needs moving even if the rubber looks clean and undamaged. The door should have room to close without an item caught against it.

Escaping suds call for a detergent check

If you saw suds coming out during the cycle, check the product that went into the machine. Use only detergent made for automatic dishwashers, such as suitable dishwasher pods or powder. Keep regular hand-dishwashing soap out of the wash cycle.

Hand-dishwashing soap can create thick foam that spills through the door. On Whirlpool dishwashers, hand soap and laundry detergent can also produce overflowing suds, so neither is a substitute for dishwasher detergent.

The warm, soapy water used on the gasket is a surface-cleaning method. The wash cycle still needs automatic-dishwasher detergent. Store that detergent somewhere cool and dry to keep it fresh.

Tighten loose hardware and stop at damage

If the door won't stay shut, look at the latch that holds it closed during washing. A loose or bent latch can prevent complete closure and allow water to leak around the door.

On Maytag and KitchenAid dishwashers, keep the power disconnected before making this adjustment. If the latch is simply loose, tighten it into place with a screwdriver. A bent or broken latch needs a model-specific replacement, so stop adjusting it and arrange service.

On Whirlpool dishwashers, loose door screws can also keep the gasket from sealing. Hand tighten any loose door screws until they firmly contact the door surface. Leave power and water off during this check.

If you find damage on a Whirlpool dishwasher, Whirlpool's leak guide (opens in a new tab) links to parts for your model. Have the model information ready so the replacement matches your machine.

Water left in the tub adds another clue

On Maytag dishwashers, a small amount of standing water in the filter area is normal. More than an inch may indicate a clogged filter. Poor draining can let the water level rise too high and leak out when the tub becomes overfull.

If you also have a dishwasher that isn't draining, check which drainage symptoms match before choosing a repair. Keep the leaking machine off while you do that. Standing water and water escaping onto the floor both belong in the description you give a technician.

For a Maytag dishwasher that still won't drain after its filter has been cleaned, the drain line is the next concern. Incorrect installation or a clog can leave water in the tub and contribute to a leak. If the line appears correctly installed but standing water persists, a clog or broken drain motor needs a service technician.

Mention a recently installed garbage disposal when you call. On Maytag installations, the disposal's dishwasher-drain knockout plug must be removed before operating the dishwasher. Ask the installer to check that connection.

On Bosch dishwashers, an E24 code can accompany a blocked drain filter. Check the accessible filter using your model's instructions. If water remains after the filter is clean, include the code when arranging help.

Hidden leaks and damaged parts need service

If water appears underneath or on the floor and you can't identify its source, book an authorized service technician. Internal leaks, a suspected inlet-valve fault, persistent overfill, a cracked tub or worn pump or diverter seals also need professional attention.

KitchenAid owners can use its support and repair options (opens in a new tab) to contact support or an authorized provider. Whirlpool owners can schedule service through Whirlpool. Either way, leave the water supply off until the dishwasher is repaired.

Have your model and serial number ready. On KitchenAid dishwashers, look on the tub frame for those details. Tell the technician where water appeared, whether suds or standing water were present, and what you found at the gasket and latch.

Check your written warranty before booking because coverage depends on its terms. For a repair you must pay for, get a current quote and ask what it includes. A published US out-of-warranty dishwasher repair estimate is $200–$450, based on 2020 network data; use it as a reference for the repair job, not as a price for a single part or check.

Other clues that change the next move

A side leak, water around a vent or an uneven installation gives you a different detail to pass along. Some models also display a leak alert that calls for service.

Check a corrected door leak

A test cycle belongs after you've corrected a visible minor cause, dried the area and found no active water underneath. If the source is still hidden or the leak continues, leave power and water off and use the service route above.

After correcting a visible minor cause and drying the area, restore power and water. For an LG dishwasher, run a regular wash cycle to check that it is working normally (opens in a new tab). For another model, use its specified cycle check. Afterward, look again at the same door edge and floor for fresh water.