REPAIR > DISHWASHER > LEAKING

How To Repair A Leaking Dishwasher

A leaking dishwasher can be frustrating and repairing it through a serviceman can be expensive. Even for someone who may not consider themselves handy, repairing a dishwasher is not a difficult process. Below we’ve provided you with a list of the most common parts that fix a leaking dishwasher. Use this information to help troubleshoot which part is broken, and then enter your model number in the search box to find the right part for you, along with tons of helpful information like our step by step installation videos and instructions.

Pump

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    • - Customers rate this repair as Easy
    • - Takes 1 - 2 hours
    • - We have 257 installation instructions
    • - We have 1 step-by-step video

    A defective pump and/or pump seal may be the cause of a dishwasher leak. The function of the pump is to circulate water in the dishwasher and in some models, to drain the water as well. The pump sits at the bottom of the dishwasher and typically consists of two separate compartments; one for wash or circulation and the other for drain. The circulation part of the pump will typically consist of the wash impeller and the filter components while the drain portion will consist of a drain impeller and a chopper blade or in some cases, a solenoid operated diverter.

    The pump housing will have some type of rubber gasket that seals it to the bottom of the tub. Age and detergents can dry out the gasket and create a leak. The wash and drain compartments of the pump also will have seals to prevent water leakage and they can fail as well. Leaks from these areas will often not be as noticeable until you remove the access panel at the bottom front of the dishwasher.

    Door Gasket

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      • - Customers rate this repair as Really Easy
      • - Takes 15 - 30 minutes
      • - We have 176 installation instructions
      • - We have 1 step-by-step video

      If water is leaking out of the front of the dishwasher, the problem may be with the door gasket. The dishwasher door gasket or seal is typically a piece of soft or foam rubber that goes around the door or the tub opening of the dishwasher, making the area watertight. Some dishwasher models have parts on the bottom corners of the door called tub baffles, which along with the door gasket, make the door watertight. When rubber ages it gets very brittle which can lead to rips, tears and holes. Inspect the gasket (and baffles if applicable) and if you find that there is a rip or hole, replace it. You should also check for proper alignment of the door into the tub opening and that the gap is the same on both sides. Make sure that the latch that keeps the door closed is in good working order and is also properly adjusted.

      Water Inlet Valve

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      • - Customers rate this repair as Easy
      • - Takes 30 - 60 minutes
      • - We have 77 installation instructions
      • - We have 1 step-by-step video

      The water inlet valve feeds the water from the home’s main water line into the dishwasher and could be the source of a leak. The inlet valve can be found behind the lower kick plate. The hot water inlet supply to the valve may be copper tubing, rubber hose or braided hose. Inspect the supply connection to the inlet of the valve to make sure that it is secure and not the source of the leak. The outlet of the valve will have a rubber or plastic hose that will typically connect to the side of the tub. Check for cracks or tears in this hose and the injector on the tub, as well as the plastic body of the valve itself. These checks are most accurate when done while the dishwasher is filling.

      Dispensers & Grommets

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        • - Customers rate this repair as Really Easy
        • - Takes 15 - 30 minutes
        • - We have 135 installation instructions
        • - We have 2 step-by-step videos

        The detergent dispenser and the rinse aid dispenser can be found on the inner door panel of the dishwasher. If you have a water leak that appears to come from the front of your dishwasher, this is an area to inspect. Remove the inner door panel to observe if the insulation is wet or if there are any signs of water leaking down the back side of this panel. If so, then the seal or gasket around the dispenser likely needs to be replaced.

        Another item to check is the detergent dispenser door catch grommet. The door catch grommet is a small piece of rubber that fits over the door catch portion of the detergent dispenser’s door latch. The grommet may have just come loose and need to be re-secured or age may have caused the rubber to become brittle and tear, in which case, it will need to be replaced.

        Spray Arm

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        • - Customers rate this repair as Reall Easy
        • - Takes 15 - 30 minutes
        • - We have 647 installation instructions
        • - We have 8 step-by-step video

        Water is forced through the dishwasher spray arms to spray water (and detergent) around the dishwasher. All dishwasher’s have a lower spray arm located in the bottom of the washer, and some dishwashers also have upper spray arms located at the top of the dishwasher. The spray arms are often made of plastic and wear and tear, high water temperatures or improper usage of the dishwasher may have caused the plastic to crack or the seams to separate. Cracks in the spray arm, or blocked holes in the spray arms will cause water to be dispersed in a less controlled manner, and this can cause water to leak from the bottom of the door where there is no seal. Remove the spray arms to give them a physical inspection and remove any blockage in the holes or replace any spray arms that are cracked or damaged.

        Float & Float Switch

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        • - Customers rate this repair as easy
        • - Takes less than 15 minutes
        • - We have 20 installation instructions

        The float is a safety device that prevents the dishwasher from overfilling with water and is located inside the tub at the bottom of the dishwasher. The float switch is located beneath the tub directly below the float. The float rises as the water level in the dishwasher rises, and when the proper water level is reached, the stem of the float triggers the float switch to turn off the water inlet valve. A malfunctioning float or float switch could cause the water level to be too high and create a leak. The proper water level is normally just to the heating element on the bottom of the tub. Check that there is no debris restricting the stem of the float and that there is nothing to impede the action of the float switch. If the switch appears to trip at the proper level but the water continues to enter the tub, then you should test the switch for continuity with a multi-meter.

        Hose Clamps & Hoses

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        • - Customers rate this repair as Easy
        • - Takes 30 - 60 minutes
        • - We have 12 installation instructions

        The hose clamps secure the drain hose and the circulating hose to the dishwasher pump. These hoses and clamps can be found by removing the kickplate at the bottom of the dishwasher. If the clamps have come loose or the hoses have cracks in them, it could be the cause of a leak. Be sure to check the clamps on both the drain hose and the circulating hose and refit the clamps or replace them if need be.

        More Repair Parts

          We’ve identified the most common parts that can cause leaking dishwasher, but there are other parts that could be at fault. If you are unable to fix your dishwasher with the information above, enter your model number into the search box for additional repair help. Searching with your model number will give you access to all parts and schematics, symptoms for your specific dishwasher as well as all installation instructions and videos.