How To Fix A Noisy Dishwasher

A noisy 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 noisy 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.


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

    A defective pump could be the reason your dishwasher is making loud noises. The function of the pump is to pressurize the spray arms and in most models it is also used to drain the water. 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 impellers are driven by an electric motor that is attached to the bottom or side of the pump.

    Wash Arm Bearing Ring & Spray Arm Seal

      - Customers rate this repair as Really Easy
      - less than 15 minutes
      We have 85 installation instructions
      We have 1 step-by-step video

      If your dishwasher is noisy, the cause could be a wash arm seal or bearing ring. These parts are plastic rings that support the wash arm or spray arm and that the arm rotates on. Either of these parts could be loose or be worn causing the spray arm to not function properly. Inspect both the seal and the ring and replace if required.

      Spray Arms

        - Customers rate this repair as Really Easy
        - 15 - 30 minutes
        We have 647 installation instructions
        We have 8 step-by-step videos

        Check to ensure that the spray arms are turning freely and are not hitting the racks or dishes. If the arms are wobbly, then the center portion or hub of the spray arm may be worn and the spray arm will need to be replaced.

        More Repair Parts

          We’ve identified the most common parts that can cause a noisy 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.