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Dishwasher Runs For Several Hours

The part(s) or condition(s) listed below for the symptom Dishwasher runs for several hours are ordered from most likely to least likely to occur. Check or test each item, starting with the items at the top of the page.

    Most Frequent Causes for Dishwasher runs for several hours

    For the most accurate results, enter your model number.


    Cause 1Heating Element

    The heating element can be used to raise the temperature of the water in the dishwasher during the wash/rinse cycle. In certain cycles if the heating element does not sufficiently heat the water the cycle will not advance causing the dishwasher to run for several hours. To determine if the heating element assembly has burned out, use a multimeter to test it for continuity. If the heating element assembly does not have continuity, replace it.

    Parts
    Cause 2Water Inlet Valve

    The water inlet valve opens to allow water to enter the dishwasher. If the valve is clogged or defective, the dishwasher won’t get enough water to clean dishes properly. Lack of water to be heated could also cause the dishwasher to run for several hours. If the water inlet valve is clogged, replace it. Do not attempt to clean the water inlet valve—cleaning the valve could make it more likely to fail.

    Parts
    Cause 3Control Board

    The control board provides power to nearly every component of the dishwasher. If there is a problem with the main control board, it might not advance correctly causing the unit to run for hours. However, this is not likely the case. Control boards are often misdiagnosed—make sure you check more commonly defective parts before replacing the main control board.

    Parts
    Cause 4Main Control Board

    The main control board provides power to nearly every component of the dishwasher. If there is a problem with the main control board, it might not advance correctly causing the unit to run for hours. However, this is not likely the case. Control boards are often misdiagnosed—make sure you check more commonly defective parts before replacing the main control board.

    Parts
    Cause 5Timer

    The timer provides power to nearly every component of the dishwasher. If there is a problem with the timer, it might not advance correctly causing the unit to run for hours. However, this is not likely the case. Timers are often misdiagnosed—make sure you check more commonly defective parts before replacing the timer.

    Parts