20 Most Recent GE 24 in. GSD4020Z Built-in Dishwasher Questions & Answers

When you replaced the pump I am assuming you replaced the whole assembly that pumps water for the wash and drain. See item 310 in this diagram.


If the dishwasher goes through the wash cycle then it was unlikely the thing that was faulty. The pump is shared by both the wash and drain cycle. It is likely the impeller (item 429) is not getting the pulse to change direction so that it draws water from the drain sump to the drain hose rather then to the wash arms as it does in wash cycle. The solenoid connection might be faulty or the controller output is not there.

GE 24 in.... | Answered on Apr 28, 2014


The issue is with the water not draining as something might be blocking the drain pump assembly thus the water is leaking. To solve this issue you'll have to take the front lower access panel out and then clean the drain pump assembly completely, also clean the impeller and chopper assembly located at the bottom of the unit. After this is done the issue should be resolved, if not then check the float switch mechanism and make sure that is fine. Hope this helps...please post back for further assistance.


GE 24 in.... | Answered on Jul 21, 2011

Hi, well indeed it could need the drain valve checked out, with view to replacement, however, it could also be a blocked jet(s) in the spray arm(s)? One simply must check out any eventuality,in these instances. Often these jets get blocked or clogged up and this in turn causes the water to not be sprayed as forcefully as it should, it doesn't take hardly anything to affect these jets it's surprising. Another thing that may also cause this to happen is a drop in water pressure, to the actual spray arm via the pump, or indeed the connection hoses, so all must be inspected to isolate the blockage if one is suspected?
It may pay first, to descale you DW, this may clean it out and clear any minor blockages away, it is worth a try anyway usually? There are commercial and home remedies available, just Goggle for any advice on this if you want.
To do anything one needs a service manual, without one it is very difficult if not impossible to effectively repair and service any machine, & if only to get the parts numbers for any spares that maybe required, not to mention the troubleshooting and disassembly instructions.
I have looked for one but have been unable to locate any?
Should one not wish to DIY, then it is always my professional recommendation to contact a local or head office of your units manufacturer, GE, and ask for a referral to an authorised service center/man, and then make contact with them, and obtain only a "Quote" as to the prospective repair,and then make up ones mind what to do then.

GE 24 in.... | Answered on Jul 03, 2011


There are three common problems that cause the Soap Dispenser or Cup not to open. I have a tip that will explain these problems in detail....

Dishwasher Repair Problem
Detergent Cup does not Open


GE 24 in.... | Answered on Feb 24, 2011

Check the drain located in the bottom of the dishwasher by removing the tray. It may be a clog. If there is no clog you can remove the drain hose from under the sink, get a bucket hold the hose in the bucket and try to drain it into the bucket. If it drains in the bucket the clog is in the sink drain, if not it can be a clog in the hose. If none of that works it could be the pump on the dishwasher. Good luck.

GE 24 in.... | Answered on Jan 07, 2011

rs, in the back under the screen is a piston nut assy. This is a common problem on these GE's. The seal on the assy. becomes warped or worn and when this happens we get water left in the tub after drain. It's an easy fix. The screen comes off and the pistion nut assy. simply unscrews. The part number is WD24X220. You can look it up on the net, inexpensive. Catriver..post back.

GE 24 in.... | Answered on Dec 05, 2010


Here is a tip that will help you to find out why water will not come into the dishwasher...

Dishwasher Trouble No Water entering Dishwasher


GE 24 in.... | Answered on Oct 09, 2010

Hi, I have an older dishwasher also and recently my wife alsocomplained about it not cleaning right... so me being the man I am tried invain to clean the things... Bought new spray arms online and installed them inminutes...now the thing works like new... However I have also found that if theheating element goes bad then that also can mess things up bad... So I wouldbuy new spray arms, and also check out the heating element to make sure it isworking... Here is a tip that will help you with the online buying...
Dishwasher Spray Arms not Spinning

How to Buy Appliance Parts Online

A bad heating element causes many problems in dishwashers...

Dishwasher Problems The Heating Element not Working

Dishwasher Maintenance


Asker's Testimonial " explanation very clear. will give it a go and seehowsimple it was. thanks Ronnie " - ronnieshomes

GE 24 in.... | Answered on Sep 30, 2010


Here is a tip that I wrote about dishwashers and them leaking.

Leaking Dishwasher



GE 24 in.... | Answered on Sep 29, 2010

Check the filter and clean it. Also check the whirling arms that go around the dishwasher - if any of the holes are blocked, they won't turn and the dishwasher won't clean.

GE 24 in.... | Answered on Aug 05, 2010

you have a clog in your drain hose.let me know if i was helpful to you.

GE 24 in.... | Answered on Feb 27, 2010

Yes!!! Go to www.applianceart.com, they have white, stainless, and a ton of other options.

GE 24 in.... | Answered on Feb 25, 2010

turn off power for a few min. if same problem, control board most likely bad.

GE 24 in.... | Answered on Oct 25, 2009

Leak is associated with the water pump, either a hose or seal

GE 24 in.... | Answered on Sep 29, 2009

Most likely faulty door switch
Slght possible the control panel is shot but door switch is cheaper and just as common

GE 24 in.... | Answered on Aug 27, 2009

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