This procedure applies to most modern Whirlpool, Maytag, KitchenAid, Kenmore, Amana, dishwashers...to name a few. There may be subtle differences between them such as options, rack design, lower spray arm appearance etc. There likely is a blockage in the filter/screen and chopper assembly below in the sump well, it's just not obvious/visible. The place to look for a remedy is the wash pump area, you`ll need to follow these steps to clean it. This is why the top rack is most effected, poor water circulation.
1 ) Remove the turbo wash tube if applicable to your model, it pulls off, i.e.
2 ) Spray arm removal. hold the center nut and spin the arm.
3 ) Now you can remove the upper spray arm supply tub or referred to sometimes as "rear feed cap". a ) lift to depress the rear tab, i.e.
b ) Then twist the feeder to the right ( clockwise ), i.e.
4 ) Now you can remove the center nut...
Then remove the four # 20 torx head screws holding the filter in place, and lift the filter out.
Below the filter you`ll find food debris, undissolved detergent etc, but also a cover with a single #10 torx head screw to remove and the cover will pull straight up and out. the arrows from left to right in the image indicate...1) screw location 2) tab to pull up on 3) the latch you may need to twist to the left to remove the cover i.e. Now you should see the chopper and screen assembly, it too can be clogged up pretty bad, clean it best you can...you don`t really want to remove this part.
If my explanation is not clear enough, here`s a link which provides a pretty good video of how to do this, these guys aren`t pro`s but the "how to" video is pretty thorough nonetheless.
I suspect something hard like a fragment of chicken bone or a citrus seed is at the inlet to the drain pump (my favorite was a plastic pull strip from a frozen juice concentrate can - that was LOUD). Many dishwashers have a chopper similar to that in a garbage disposal right before the pump inlet, but some things like bone won't go through it. It could be something light enough to float and only hits the pump when the water level drops. You may have to remove the pump cover in the bottom of the dishwasher to find it. This would be a good time to clean any garbage out of the lower spray arm and check the spray arm bushing for excess wear.
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Dishwater residue is a fairly common occurrence, and several things can cause it. Even the newest dishwashers may leave residue, and it might have nothing to do with the actual dishwasher function itself. However, there are things you can do to prevent, limit or completely remove dishwasher residue during every washing cycle.
Modern phosphate-free detergents are the main culprits when it comes to detergent residue. After every wash, many leave a slight whitish residue behind. After several washings, the residue becomes caked on and leaves a noticeable white tint to your dishes. Some dishwasher detergent brands are better than others, and either minimize residue or do not leave any. Once residue is present, however, the only way to remove it is by hand scrubbing or scraping.
Hard-Water Residue
Hard-water residue comes from non-softened water from your hot water tank. Non-softened water leaves a white tint on dishes, but no amount of scrubbing will remove it. Only by wiping a small patch of the dish with vinegar or lemon juice will you be able to ascertain whether the white residue left is hard water or detergent. The slight acidic action of the vinegar or lemon juice removes hard-water stains, but they have no effect on detergent residue.
Greasy Residue
If the dishes feel greasy when they come out of the dishwasher freshly washed, you are dealing with a greasy residue. There are two main reasons for this: either the detergent is not an effective grease remover, or the hot water inside of the dishwasher, either from the hot water tank or the dishwasher's heating elements, is not hot enough. Boosting the hot water temperature on the water tank may solve the problem, and a second wash cycle may be needed for the dishes. A preventive measure of running the dishwasher empty with a full load of detergent also removes the residue inside of the dishwasher.
Streaking and Spotting Residue
If you have spotting or streaking on your dishes, that may be a sign you need a rinse agent. Many modern dishwashers recommend a rinse agent to prevent spotting or streaking, and without one, your dishes will never be crystal clear or streak-free. The next time you do a dishwasher load, add a rinse agent. If the dishes come out spot- and streak-free, the problem is solved.
i don't know. sounds like a fault in the program. consider unplugging machine for 10 mintes. plug it back in and run a short wash to see if the program has reset itself. if not OK, call for repair estimate then decide if you can live with it as is,-- have someone try to repairit -- or replace it with a new one which may offer extended warranty for $$.
google Maytag Quiet series 300 Handle and latch
there are several new handles about $30-35.
link to how to replace handle
copy and paste
https://www.youtube.com/watch?v=Tfw0F5XeWHY
..
google maytag dwu7400aax dimensions for your answer less than 3 seconds.
This is just a standard size dishwasher model. Dishwashers in general are going to be standard size unless you get a portable dishwasher or a 30 inch wide dishwasher. There are very few of these models. Your size dishwasher is just 24" wide 24" deep and 34 1/2 inches tall but the height can be adjusted somewhat
Those units are shipped without a power cord so they can be hard wired into a conduit box. Check the power cord where it is wired into the box ON THE MACHINE and make sure all the connections are correct and are secure.
Perhaps a safety switch somewhere. I would check inside for a utensil that fell down into the impeller or the like. Also look at the door latch area; maybe a switch there is not closing properly.
To reset those you need to interrupt the power to the unit, you can do this by finding the breaker it is on and turning it off for a minute or two. Then try again and let us know
I am not familiar with the model but I doubt it - few people these days use the highly inefficient soap dispenser, preferring to add detergent directly into the wash drum.
I suggest you read the instruction booklet.
Sorry I only have more questions. If you observe the following things it may help rule out the thermostat or heating element . There are similarities to my problem. My dishwasher run for 4 seconds and stops briefly and starts again and will do that for ever.
1. Will it run properly in RINSE ONLY mode?
2. Does it run constantly or stop /starts continuously?
3. Does the soap dispenser open?
4. Does the timer count down? Ie cycle reads 2H and counts down, at least on my model.
5. Finally noticing if all the normal sequencing is happening. Ie turns on, pump empties the dishwasher, fill occurs, arms spin, and so forth. you should be able hear the unit empty and refill again and the rinse light goes on.
Sorry I could'nt be more help but possibly we can help each other.