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Maytag Dishwasher overflowing

If your Maytag dishwasher is overflowing, start with the most likely cause: a bad water inlet valve that is stuck open or dripping water into the tub when it should be shut off. This is a common reason a dishwasher overfills with water, especially if you notice water collecting even when the machine is not running. Next, check the main control board, since a shorted board can keep sending power to the water inlet valve during the cycle. If it looks like your Maytag dishwasher is overflowing but the leak is actually coming from the door area, inspect the lower wash arm assembly for cracks that can spray water out the bottom of the door. Too much detergent or the wrong detergent can also cause oversudsing and make a dishwasher water level too high look worse than it is. Finally, inspect the float switch, because a stuck or failed float switch problem can prevent the dishwasher from shutting the fill off at the right time. Enter your model number on RepairClinic.com to find the exact Maytag replacement part that fits your dishwasher.

01 - Maytag Dishwasher Water Inlet Valve

The water inlet valve is an electrically-controlled valve that opens to allow water to enter the dishwasher. Depending on the model, the valve stays open either for a set length of time or until the dishwasher has enough water. However, if the water inlet valve doesn’t shut off after the dishwasher has enough water, the dishwasher will overflow. If water drips into the dishwasher when the door is open, or if water collects at the bottom of the dishwasher while it is not use, you may need to replace the water inlet valve.
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02 - Maytag Dishwasher Main Control Board

A dishwasher's main control board provides power to nearly every electrical component in the dishwasher. If the control board continues to send power to the water inlet valve during the drain cycle, the dishwasher could overflow. While this is not that common of a problem, you can inspect the board for signs of burning or a shorted-out component. You can also use a multimeter to test the water inlet valve for incoming power during the dishwasher's cycle.
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03 - Maytag Dishwasher Lower Wash Arm Assembly

If the lower wash arm has a crack or split on the side it can cause water to splash out the bottom of the door, giving the impression that the dishwasher is overflowing. Inspect the wash arm assembly for any damage and replace if necessary.
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04 - Wrong type or incorrect amount of detergent

Make sure to use the proper dishwasher detergent. Use the proper amount of detergent for your water hardness; too much soap in soft water can cause oversudsing and leaking.
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05 - Maytag Dishwasher Control Board

A dishwasher's control board provides power to nearly every electrical component in the dishwasher. If the control board continues to send power to the water inlet valve the dishwasher could overflow. While this is not that common of a problem, you can inspect the board for signs of burning or a shorted-out component. You can also use a multimeter to test the water inlet valve for incoming power during the dishwasher's cycle.
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06 - Maytag Dishwasher Float Switch

The float switch actuates in order to prevent the dishwasher from overflowing. If the float switch is defective or stuck, it might not stop the dishwasher from overflowing. If the float switch is defective, replace it.
Common

Frequently Asked Questions

Why is my Maytag dishwasher overflowing?
How can I tell if the Maytag dishwasher water inlet valve is bad?
Can a float switch cause a Maytag dishwasher to overfill?
Why is my Maytag dishwasher leaking from the door instead of actually overflowing?
How do I find the right overflow-related part for my Maytag dishwasher?

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