Question about Roper 24 in. RUD4000M Built-in Dishwasher

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Dishwasher did not drain all the water

I have a pool of water left on the bottom of my dishwasher. During the last cycle, water came up through my garbage disposal into the sink. It drained out of the sink and I ran the garbage disposal, but water is still pooled at the bottom of the diswasher. Is this a clog? How and where do unclog it? Any advice would be appreciated and would save this hard working teacher some money. :)

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  • jaybee42 Jan 09, 2008

    I'm a landlord and all my installations to replace old moffets are ropers. I have three that will not completely drain. I took it out, checked all hoses and traps and found no clogs. Could the pump have a problem? Really appreciate any advice....despertly waiting....

  • RoRosgirl Apr 24, 2008

    i have a roper dishwasher and it comes up through the extra piece on my sink by the sprayer and it holds water now it is starting to stink i clean it and it is still doing it.



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The house drain is clogged...

Here is a tip that I wrote that will help you with your dishwasher not draining problem...

Dishwasher Problems - Water will not drain out


Posted on Sep 29, 2010

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Your sink drain is clogged and the back pressure is not allowing the dishwasher to drain competely. Do not use a liquide drain cleaner, it will damage your disposal. take apart p-trap hopefully the clog is there, otherwise the line will need to be snaked.

Posted on Aug 26, 2009


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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Related Questions:

1 Answer

When dishwasher is emptying it is backing into sink

there is probably nothing wrong with Dishwasher itself.
Your Sink drain is stopped up or your Garbage disposal is clogged.
usually, dishwasher drain is connected to the Garbage Disposal, but if the dishwasher empties the water into the Garbage disposal, if its clogged then water will come out of the sink. Same if sink is clogged between sink and sewer.

If you fill up your sink and then water drains away, then you know your sink itself is not the problem. If its only the Garbage disposal side that does not drain, its the garbage disposal that is clogged.

Dec 22, 2013 | Dishwashers

1 Answer

Our sink and garbage disposal was clogged up. We got the sink unclogged, but the dishwasher had dirty water in the bottom and won't drain.

Your dishwasher drains into the garbage disposal. It you tried to use a plunger to clear your clogged sink or run the disposal with to much junk in it you may have force debris into the dishwasher drain hose. With both the dishwasher and garbage disposal disconnect from power disconnect the dishwasher drain hose from the garbage disposal. This is usually about a one inch black hose. Clear out any debris in the hose and inlet nipple on the garbage disposal. If debris is compacted far down the hose it will need to be disconnected from the dishwasher end and remove to clear the blockage.

Good luck!

Feb 10, 2012 | Asko 1385 Dishwasher

1 Answer

Won't drain. Water sits in bottom during all cycles. Water back up to sink.

Run your garbage disposal and sink water for a few minutes in case there is anything clogging the drain. Also look under your sink in case the drain hose is kinked. That hose might also be clogged but is a difficult job - maybe pro help is needed if you are not comfortable doing it yourself. Last option is that the pump is bad and must be replaced

Jul 08, 2011 | Dishwashers

1 Answer

My dishwasher is not draining completely. There seems to be more water left than last time I used it. Also, I tried to used the cancel/drain feature, with no success. Please give me some suggestions!

Hi and welcome to FixYa, I am Kelly

The drainage problems are caused by particulate in the drain.

There are 3 areas that cause restrictions with larger food particulate
1. The Air-Gap (if equipped) but the most common blockage point,
2. The sink connection. This is usually a garbage disposal connection. If the user is not properly rinsing long enough while the garbage disposal is in use the garbage disposal / dishwasher connection port is blocked with garbage disposal debris.
3. The bottom of the dishwasher sump area under the lower wash arm. If this area is blocked the user will complain of dirty dishes post cycle, It also causes drainage problems, If the user says dishes are not getting clean and it is not draining properly this will be the LAST area to check. Do 1 and 2 first.

I have had multiple call backs on some units... I have learned to call a brief moment before stopping by and inspect the DIRTY dishes in the dishwasher, the sump, air-gap and sink connection. Most of the time I find that the user is placing dishes with large food particulate in the dishwasher or... they are not letting the water run long enough when using the garbage disposal so the garbage disposal port clogs. These are the same folks that have things like pump impellers and pump housings that get broken due to their daily routine habits.

You wil have to clean all of the drain connections for the dishwasher pump outlet all the way to the sink connection. The Air-Gap is the most common area for blockages so pull off the cover.. unscrew the inner top nut NOTING the installed position BEFORE removal and clean out the Air-Gap (if you have one) Otherwise remove the drain hose at each connection and remove the debris. It is OK ot reconnect each connection after your done cleaning. This will solve about 85% of dishwasher drain problems. The last 15% the lower wash arm and support has to be removed to inspect for pump impeller damage or motor pump housing damage.

FYI the 2nd most common reason for drain problems is the actual sink port connection being clogged. Just clean the drain hose connection ports and the air-gap.

I think once you get all of your drain connections cleaned that your dishwasher will operate normally.

Thanks for choosing FixYa,

Jun 17, 2011 | Whirlpool Dishwashers

1 Answer

The water is not draining out of the dishwasher at end of rinse cycle leaving a pool of water in bottom of dishwasher

Possible that the drain pump /drain valve is not working . it can be struck or it could have failed. Best is to check the voltage during the program . If voltage is present then pump is faulty but if voltage is not present then the controller board is not working ,possible failure in the board.
check this link for some more help and topics.

Happy Holidays

Dec 24, 2010 | Neff 24 in. S5456 Built-in Dishwasher

1 Answer

Dishwasher overflowed, garbage disposal still works. Ran the dishwasher and noticed food and debris shooting back into sink thru garbage disposal. Water was on floor. Upon completion of full cycle, water...

Before loading into the machine you have to remove food particles. Washer will wash the greasy surface. If particles are left in the dishes, the same will find entry to the drain system. Check the drain filter in your machine. Clean them. Mostly problem will be solved!

Apr 08, 2010 | GE 24 in. Profile PDW9880JSS Built-in...

1 Answer

Not cleaning fully - tablets left in bottom of unit - some of runners on bottom tray missing

Hi there,

Well first of all you can check the Water-inlet valve
Most cleaning problems are caused by the dishwasher not getting enough wash water, so the water-inlet valve is often to blame. This valve is usually at the bottom left or right of the dishwasher, behind the lower access panel. It's the device with the main water line from the house, a rubber tube to the dishwasher, and two wires attached to it. When a water-inlet valve is defective, you may hear the sound that's usually referred to as "water hammer." If the water-inlet valve is defective, you need replace it.
After then you can check the Drain valve,  that should open only during draining. If debris lodges in the valve, it can't close properly, so water drains out during the wash cycle. Most dishwashers drain into the garbage disposer. If yours does that, listen for water flowing into the disposer during the wash cycle. If you can hear it then, the drain valve may be clogged.
Please post comments if you need more help or information..............

Good Luck!!


Jan 07, 2010 | Zanussi 24 in. DE6544 Built-in Dishwasher

1 Answer

Cycle finishes but water is not draining

Sounds like too much water leftover.

Give me a make and model number of the dishwasher.

Check that the drain hose isn't kinked, and that where the drain connects at the garbage disposal at the sink isn't partially clogged. And, is the garbage disposal clean/clear of food stuff's.
I had a similar thing happen to me a few weeks ago, and it turned out the kitchen sink drain line was clogged.

Dec 16, 2009 | Cars & Trucks

1 Answer

Water left in bottom of dishwasher after cycle

a little water is supposed to remain in bottom so that pump will not lose prime

Nov 07, 2009 | Dishwashers

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