Dishwasher Leaking from door or bottom

A leaking dishwasher can cause water damage to your floors and cabinets if left unaddressed. This guide covers the most common causes of leaks — including a worn door gasket, damaged door latch, faulty door hinges, and a clogged or cracked door seal — and walks you through diagnosing and fixing each one. With basic tools and a little patience, most homeowners can stop a dishwasher leak in one to two hours.

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   Step 1: Disconnect Power and Water Supply

   Before doing anything else, cut power to the dishwasher. Go to your home's electrical panel and flip the breaker labeled for the dishwasher to the OFF position. If you are unsure which breaker controls it, plug a small device into a nearby outlet and turn off breakers until the device loses power. Next, turn off the water supply valve under the kitchen sink — it is usually a small valve on the hot water line feeding the dishwasher. Turn it clockwise until it stops. Place old towels or a shallow pan under and around the dishwasher door before you begin to catch any residual water.

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   Step 2: Identify Where the Leak Is Coming From

   Dry the area around the dishwasher thoroughly with towels. Run a short rinse cycle (restoring power temporarily just for this test) and watch closely where water first appears. Check along the bottom edge of the door while it is closed, the corners of the door frame, the area beneath the door, and the floor directly under the front of the unit. Use a flashlight to inspect the door seal and the bottom of the tub. Mark or photograph the leak location before turning the breaker back off. Knowing the exact source will save you time during repair.

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   Step 3: Inspect and Clean the Door Gasket

   Open the dishwasher door and look at the rubber gasket that runs along the inside perimeter of the door frame. Run your finger along the entire length of the gasket feeling for cracks, tears, hard or brittle sections, or areas where it has pulled away from the channel. Also look for food debris, grease, or mineral buildup that could prevent a proper seal. If the gasket is dirty but still flexible and intact, clean it thoroughly with a solution of warm water and a few drops of dish soap using a soft brush or old toothbrush. Rinse well and dry. Push any sections of gasket that have slipped out of the channel back into place firmly.

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   Step 4: Replace the Door Gasket if Damaged

   If the door gasket is cracked, torn, brittle, or permanently deformed, it needs to be replaced. Look up your dishwasher's model number — usually found on a sticker along the inner door edge or on the side of the door frame — and order a replacement gasket made for your specific model. To remove the old gasket, simply pull it out of the channel it sits in, starting at a corner. It should peel away without tools in most models. Some gaskets are held in with screws at the corners — remove those first if present. Install the new gasket by pressing it firmly into the channel starting at the top center and working outward toward each corner, then down the sides. Make sure the gasket seats fully and evenly all the way around with no gaps or bunching.

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   Step 5: Check and Adjust the Door Latch

   A door that does not close tightly allows water to spray past the gasket even if the gasket itself is fine. Open and close the dishwasher door and notice whether it feels loose, drops slightly when you let go, or does not click firmly into the latch. Locate the door latch assembly at the top center of the door — it typically includes a strike plate on the tub and a latch mechanism inside the door panel. Check for any visible cracks in the plastic latch body. On many models, the strike plate can be adjusted by loosening its mounting screws slightly and repositioning it so the door closes more snugly. Tighten the screws once the fit feels firm. If the latch is broken, order a replacement.

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   Step 6: Inspect the Door Hinges and Springs

   Worn or bent door hinges can cause the door to sag, preventing it from pressing evenly against the gasket. Open the door fully and look at both hinge assemblies at the bottom corners where the door connects to the tub. Look for rust, cracks, or bent metal. Also check the door balance springs — these are usually long springs or cables running down the sides of the dishwasher inside the lower side panels. Access them by opening the lower kick plate (the panel at the base of the dishwasher, usually held by two screws). If a spring is broken or a cable is frayed, it should be replaced. Replacing door springs can require some force since they are under tension — refer to your model's service manual for spring routing diagrams.

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   Step 7: Check the Door Bottom Seal and Tub Seal

   Some dishwasher models have a separate seal or strip along the bottom edge of the door opening on the tub floor — sometimes called a door bottom seal or sump seal. This flat rubber strip prevents water from washing under the door during the cycle. Locate it at the very bottom of the tub opening and check for cracks, tears, or missing sections. Also inspect the lower spray arm area for any cracked plastic that might redirect water toward the door. If the bottom seal is damaged, it can usually be removed by pulling it out of its slot and pressing a new one into place.

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   Step 8: Inspect the Water Inlet Valve and Hose Connections

   If the leak appears to come from under the dishwasher rather than the door itself, the water inlet valve or its supply hose may be the source. Pull the kick plate off the bottom front of the dishwasher to access the area beneath the unit. Use a flashlight to inspect the water inlet valve — it is located at the bottom front left or right of the unit and connects to both the water supply line and internal hoses. Look for water stains, mineral deposits, or drips around the valve body and hose connections. Check that all hose clamps are tight by squeezing them with pliers or tightening their screws. If the valve body itself is cracked or leaking, the valve will need to be replaced.

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   Step 9: Restore Power and Water, Then Test

   Once all repairs are complete and everything is reassembled, reconnect the water supply by turning the supply valve back on counterclockwise. Check under the kick plate for any drips at the supply connection before proceeding. Replace the kick plate. Turn the breaker back on at the electrical panel. Run a complete wash cycle and watch the door edges, door bottom, and floor area throughout the cycle. Stay nearby for the full cycle. If no leaks appear, the repair is successful. If a leak persists in a different location, you may have a secondary issue and should repeat the inspection process from Step 2.

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    Step 10: Dry Out and Inspect for Water Damage

    After confirming the leak is fixed, check the floor, cabinetry, and the underside of the countertop for any moisture or water damage from the previous leak. Use dry towels and a fan to dry out any wet areas under or around the dishwasher. If water has been leaking for an extended period, check for soft spots in the flooring or discoloration in wood cabinets that could indicate rot or mold growth. Addressing water damage early prevents costly repairs later. Consider placing a water leak detector under the dishwasher going forward for early warning of any future leaks.