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wrmaher  
#1 Posted : Tuesday, May 26, 2009 3:30:56 PM(UTC)
wrmaher

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Hi:
Recently our GE Profile dishwasher has not been draining completely. I read a few earlier posts and I will try your recommendations to solve that problem. In addition, the motor has been making a very laborious noise. Any idea as to why the motor sounds like its working so hard? The DW is 11 years old. Is there a "rebuild kit" for this unit that has all or most of the commonly replaced parts? I'm planning on pulling this thing out to rebuild it and I would like to do it once. Any suggestions? Thanks. BTW...your website is awesome!
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denman  
#2 Posted : Wednesday, May 27, 2009 3:25:36 AM(UTC)
denman

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Here are your parts
http://www.servicematters.com/m...ibrary/docs/16021814.pdf

Note that it may not be worth rebuilding unless in great shape.
I do not see a motor/pump assembly listed for this unit.
If I was rebuilding this I would rip it apart before ordering parts just to be sure all the required parts are available. You can never tell when a part may break removing it and if no longer available you are stuck with a bunch of parts you cannot use.

You may have two different problems here.

The poor drain is most often a partially clogged drain hose or a worn out piston and nut assembly.

The hard working pump, may be broken glass, twist ties etc,. in the sump/chopper area just remove the cover inside the unit and check it out.

Also these pumps will growl (cavitate) if they do not get enough water.
Should fill to just below the heater element.
Could be just a dirty filter screen on the inlet side of the water valve.
Easy way to check is open the door just after the fill, if the water looks a little low, add a couple quarts of water. If the unit now runs OK odds are high it is a dirty screen.

Another item that causes problems on theses units is the little flapper valve, Item 557 in the "Motor-pump" section. They rot out over time this allows water to shoot out the hole instead of up to the spray arms. Can make quite a difference in wash quality.
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wrmaher  
#3 Posted : Wednesday, May 27, 2009 10:52:33 AM(UTC)
wrmaher

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thanks denman for the quick response. I'm not sure what to do with the Maytag manual, since our unit is a GE (do you have a manual for the GE GSD4020Y73BB?). The unit is in good working order and has been trouble-free for over a decade. I noticed last night that the holes in the upper spray arm are plugged up pretty good (possibly debris or calcium?) and I plan on replacing both the upper and lower arms (the lower has debris as well). Is there a better spray arm set that you can recommend that will work in this unit? Also, if this was your weekend project, what parts might you consider replacing knowing that the unit will be pulled and you will have free access to everything?
denman  
#4 Posted : Wednesday, May 27, 2009 11:26:32 AM(UTC)
denman

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Sorry about that, here are your parts.
Replacement parts for GE GSD4020Y73BB | AppliancePartsPros.com

If the arms are OK I would not replace them but you are there so know better than I what shape they are in also I can be ultra cheap.
Especially the top one as then you will have to pull the unit.
If it just chunks of food etc. I find it easiest to pull them out when wet with a pair of tweezers.
If it is calcium deposits, soaking them in vinegar for a couple hours should clean them.
Note in the parts that the lower spray arm assembly comes as a kit.
Click on the picture in the listing and you will get a better view of them, perhaps they are an improvement over the original arms.

Not a bad idea to run a cycle with a quart or two of vinegar added. This should clean up the calcium in other areas of the unit. I like to start a cycle, add the vinegar, let it run for a minute or so, stop the cycle, let it sit for an hour or so then let it run for a minute and let is sit, I do this a few times and it should give a good cleaning. Use the main wash not the first short wash/rinse cycle.

Do not let it dry using the heater, so I let it finally drain and run a full cycle with just water.

I would probably replace the piston&nut and the little flapper in the spray arm support. These can be accessed from inside the tub so you do not have to pull the unit.
Check your sump and chopper.
On the sump take note of how the inner filter goes, put it in wrong and the chopper will eat it.
Underneath for any leaks/calcium trails
Take apart the float assy and give it a cleaning.

Note that a number of theses parts are reverse thread.

I do not think the arm support/tower that comes with a lower arm kit uses a small flapper so you should not need it if replacing the arms. Perhaps someone else can confirm this.
THIS FORUM IS DEAD!!!!!!!
wrmaher  
#5 Posted : Friday, January 22, 2010 9:20:12 AM(UTC)
wrmaher

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Denman...I finally got around to ordering the replacement parts you suggested for my GSD4020Y73BB dishwasher (upper & lower spray arms; piston & nut assembly) and I pulled the unit and installed them last night. I was shocked to see how much crap and junk was under the sump cap and in the sump itself. The screen/nut (GE P/N AP2039170) was chuck full of hard debris and I noticed that some of it made its way into the impeller area. The debris looked like something you would find on a beach...small pebble-like junk and some of it was broken glass, ceramic, etc. There was also a good amount of debris in the body valve & check assembly.

Things appear to be working in order. However, I did notice that the unit still makes some weird noises. In an earlier post, I mentioned that the motor seemed to be making a laborious noise. At this point, I'm convinced that it is not the motor making noises, but rather the noise seems to be coming from the other side of the motor...more in the pump or the sump area. The cycle ran fine this morning. The only thing I noticed was a drop or two of water on the floor underneath the solenoid drain/pump housing. Other than that, everything seemed normal.

Do you have any idea as to what would cause the pump or sump to make loud "chugging" and sometimes loud "grinding" noises? While the unit was running, I placed my hand on the pump/sump and the noise seemed to lessen a bit, but I did feel a fair share of vibration. When I had the unit apart last night, the motor, pump and impeller all seemed to move freely. Since this is the first time in over a decade that this unit has been really cleaned out, is it possible that years of debris damaged something in the impeller or the pump unit? I would really appreciate your input on this. Thanks in advance for your help! Bill
wrmaher  
#6 Posted : Friday, January 22, 2010 9:37:00 AM(UTC)
wrmaher

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Oops...I forgot one thing. In the diagram for the screen/nut (GE P/N AP2039170), there appears to be a small metal blade. When I was cleaning this part of the unit last night, I could not find this piece any where. Any ideas? Thanks again!!
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