Hi,
I have an older dishwasher also and recently mywife also complained about it not cleaning right... so me being the man I amtried in vain to clean the things... Bought new spray arms online and installedthem in minutes...now the thing works like new... However I have also foundthat if the heating element goes bad then that also can mess things up bad...So I would buy new spray arms, and also check out the heating element to makesure it is working... Here is a tip that will help you with the onlinebuying...
Dishwasher SprayArms not Spinning
That problem can have many and varied solutions...I have tried to put together in this tip the most common and easiest to checkout problems. For many of the spray arm problems the solution will be here, but it would be impossible to cover every possible problem in any answer with out actually being able to hands-on disgnose the problem....
The pump out motor is inline with the outlet pipe and can be checked by a)Looking to see if it the motor spins while in the pump out mode. b) Test with AC voltmeter across the 2 terminals for voltage while in pump out mode.
The motor can be removed by removing the 2 hose clips and disconnecting the electrical push on lugs.
If voltage is across the terminals and motor does not spin...indicates that the motor is open circuit and must be replaced.
Make sure that the impeler in the motor is spinning while in pump out mode
Make sure outlet pipe is not blocked or obstructed.
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.
5Found This HelpfulGeorge Doyle/Stockbyte/Getty images
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.
Spray Arms not Spinning
