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Maytag Dishwasher MDB4709PAW1 over fills only during initial pre-wash rinse


Premium Member
Apr 22, 2023
Colorado Springs
Model Number
More than 10 years
Can anyone help me out here? I'd like to fix this myself if possible. This 2013 Maytag dishwasher overfills and leaks out the front, below the door only during the initial rinse before the soap dispenses and the wash cycle runs. After it drains the rinse water it refills to the correct level, dispenses the soap and completes the cycle without any further leaking. What the heck is going on here?
So the water does not stop filling during initial pre-wash rinse, and overflows onto your floor? When the water keeps flowing in and overflows--->Disconnect power to the dishwasher and then see if the water stops filling.

If the water still keeps overflowing with the power off to the machine, then your water inlet valve is the problem.

Here's the water inlet valve for your model: Water Inlet Valve W11175771

Watch this video to replace it:

Hi Jake, Thanks for your response to my post. Let me clarify slightly. The water does stop filling during the initial pre-wash rinse but it fills up (too high) right to the rim of the tub and slpashes over the front edge when the pump starts and the spray arms run. I've opened the door to check the water level.

After that it drains, it refills to the correct level for the wash cycle, the soap dispenses and the water never leaks again for the duration of the cycle. Again, I've opened the door to check the water level. What I can't figure out is why does it overfill for the first pre-wash rinse but then fills up correctly for the rest of the cycle? I see you have plenty of experience as an appliance tech. and would appreciate your insight and advice here.
The control board controls the fill cycle. The first fill is 2m 25s then the rest are 1m 45s. What I would do is remove the water inlet valve electrical connector and time how long the first fill cycle is taking with a multimeter, the multimeter should read 120 volts when its in the fill cycle.
Strange thing now. We've run the machine a few times anticipating getting the repair completed. The machine has stopped leaking and it seems whatevevr glitch it was having during the pre-wash rinse has at least temporarily stopped. I'll keep eyes on it and test the water inlet valve if it acts up again.
Ok, yes that is odd. Yes, just keep your eye on it for awhile.:)

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