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Dishwasher Overflowing

The 2 most common part(s) or condition(s) which contribute to the symptom Dishwasher overflowing are listed below. Check or test each item and watch any available videos. If you are still unable to solve the problem you may need to do additional research and troubleshooting. Remember, with our 365 Days. Period.® return policy you can return any part for any reason. So, go ahead and buy it to try it. No other parts retailer offers this unconditional return policy.


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For the symptom you selected, these are the most common parts or causes, ordered by the likelihood of fixing the symptom.

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Water Inlet Valve

Every dishwasher has an electrically controlled water inlet valve. The valve stays open either for a set length of time or until the dishwasher has enough water - depending on the model. However, if the water inlet valve doesn't shut off properly when the dishwasher has enough water, the dishwasher overflows. If water ever drips into the dishwasher with the door open, or if there is a lot of fresh, clean water in the bottom of the dishwasher after it has been sitting unused, the water inlet valve may need to be replaced. If there is allot of suds in the bottom the unit may be over sudsing and reducing the soap used may solve the problem.

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Float Switch

The float switch is actuated by the float assembly. It is a protection device designed to prevent the dishwasher from overfilling. If the dishwasher overfills with water, it may be because this float switch is defective or stuck.

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