I suspect the filter plugging on a 19 year old dish washer is due to the environmental changes made in dishwasher detergent, and not a monkey at Maytag. The detergents are now all phosphate free, thanks to a few States implementing regulations a few years ago. It fits the timing well. The problem with the new detergents is that a film forms that won't wash off many surfaces of your dishwasher. That probably plugged the filter. Before that the filter would have flushed clean every time the washer drained. Now you have to run some TSP through the washer, or buy one of the special dishwasher cleaning solutions being sold by the same detergent companies. Does anyone else see the irony of having to run a special wash solution through a washer to keep it clean?
I too have a dishwasher (10 years old) the slowly got worse in cleaning the dishes. I tracked it down to the last hole in the lower swing arm being clogged (both ends). This last hole was angled so it would push the swing arm around to clean most every part of the compartment.
I ended up finding the smallest tweezers I could to reach in to the hole and pull out the food that was stuck inside. I do that every few months to keep the unit cleaning fairly well. It is down stream of the filter (and that is clean) but small parts accumulate at the end of the arm, probably from centrifugal force. Once it cakes up the arm just stays in on e spot for the whole cycle.
Larry, all of those clamps are spring clamps, and besides that they all apply the clamping force along a single line, at least the wire ones do. The third link shows a clamp similar to what is provided with the blower wheel, and that one does allow the very slight motion that causes the wear. The worm gear style clamps don't have any compliance, they wind up being rigid, and so allow no motion. The whole problem is that there is a very small movement that leads to wear, which loosens the joint, leading to more motion and more wear.
In addition, a spring wire clamp that was tight enough to prevent all relative motion would probably exceed the allowable surface loading of the material.
Larry M, the spring clamp is the source of the problem, since the spring allows movement, which causes the wear. And at 1750 RPM the small unbalance of the worm style clamp is not a big deal. But if it were, it would be a simple matter to use two of them so as to maintain balance.
I had a dishwasher that somehow had the drain age flow clean the food filter, so that the filter did not normally need to be manually cleaned. If a dishwasher manual indicated that dishes had to be cleaned prior to washing, I would consider that a deffective design and retuyrn the machine and demand a refund. A machine that is unable to do the job that it is made for is JUNK.
I have written several times about this very problem. I have a Kenmore washer, with no mention of a filter, and Kenmore freezer with no mention of a backup 9v battery. I had a Bowlens electric lawnmower with no mention of a design feature that would trap grass and cause the motor to overheat. Not only was there no mention of this problem, there was no nondestructive way to clean it out. The lawnmower problem was discovered when I did a teardown on the machine. The Kenmore problems were solved by doing research on the internet and finding information from other owners who shared their stories.
I agree Cabe, but as big box appliances add more electronics, they seem to lose dependability. Time after time, our Monkey writers regret having given up their mechanical washers, dishwashers and dryers.
I am only defending the filter design and not the bearing issue!
I have had a maytag dishwasher (and other brands) and most all of them suggest rinsing the dishes prior to loading into the machine. But, I just load them into the dishwasher with all the clumps of food stuff, ketchup piles, and corn kernels still on the plates. I even throw in the mashed potato spoon still full of junk! Knowing this, the manufactures have to filter the pump (which is usually a screen on the floor of the unit). But even this can suck those mashed potatos into the system. One thing that seems to be constant is the wash arms are two piece designs glued together. Thus, the better manufactures make sure to filter this part to prevent the holes from clogging up. The Whirlpool dishwasher I currently have does not and the wash arms got plugged up. To fix them I had to purchase new ones. Now I take them out about every 6 months and thourghly clean them out!
So (and this is only a guess on my part) I think Maytag may actually have been trying to prevent the spray arms from clogging up. But why they do not mention this filter in the manual is monkey material!
True enuf about keeping inept people from hurting themselves but how about at least warning to the owner that the filter needs to be serviced periodically. That monkey mind set is not a good way to build customer satisfaction and loyalty.
Adding a small boss on the end of a molded nylon squirrel cage rotor is not a very expensive thing to do. The material cost is close to zero and the cost to machine the recess in the mold is divided by 50,000+ parts.
What it really boils down to is the mindset of the company management and their focus on quarterly earnings instead of long term sales based on a quality product. I have, unfortunately, seen it at several companies that I have either worked for or done consulting work for.
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