This is a flood switch assembly for your washer. The flood switch controls the hot and cold water filling your washer tub to ensure the proper amount of water. You may need to replace this part if your washer is overfilling or underfilling with water. It is about 5.5 inches in length, and mostly black in color with a green tip.
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Part Videos
Replacing your General Electric Dishwasher Flood Switch
Troubleshooting
This part fixes the following symptoms:
Not drying dishes properly | Will not fill with water | Not cleaning dishes properly | Not draining
This part works with the following products:
Dishwasher.
Part# WD21X10519 replaces these:
AP5781465, WD21X10492, WD21X20204
Customer Reviews
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★★★★★
★★★★★
Daniel O - May 28, 2024
Verified Purchase
Easy repair - Resolved issue
This was the part recommended by PartSelect for my dishwasher water heating issues and their recommendation was spot on. Installation instructions/video were great and I had the unit prepped to swap out the part when it came. Took about 15 minutes to install after prior disassembly and cleanup.
Part did take a bit longer to arrive than hoped despite opting for expedited shipping, but was unit was ultimately repaired about a week after diagnosing the issue.
★★★★★
★★★★★
Richard H - August 16, 2023
Verified Purchase
Easy repair.
Like new OEM part and worked great.
★★★★★
★★★★★
Shiloh W - May 6, 2023
Verified Purchase
Worked as expected
Part came quick.
★★★★★
★★★★★
Nate C - April 26, 2023
Verified Purchase
Worked great
Part fixed the issue
★★★★★
★★★★★
Roger D - March 25, 2023
Verified Purchase
Bummed OUt over Parts
The heat went out on my GE dishwasher, so I replaced the heating coil. This did not fix it and the next recommended part was a flood switch. This did not repair the problem.
The parts are easy enough to replace yourself, but beware the recommended fixes do not always work, and nothing else was recommended. I suspect a board problem, so I am stuck with electrical parts.
March 26, 2023
Thank you for your review. We are sorry to hear about your experience and will be in touch to try and fix this issue.
★★★★★
★★★★★
Kane E - December 4, 2022
Verified Purchase
Flood switch
Dishwasher wouldn't dry replaced flood switche and now it work's like it should.
★★★★★
★★★★★
Clayton S - September 25, 2022
Verified Purchase
Easy repair after watching video.
I thought it was a defective solenoid valve and it turned out to be my flood switch.
Dishwasher is working perfect now!
★★★★★
★★★★★
Wayne W - September 4, 2022
Verified Purchase
neaver got a refund
sent pactage back without opening it
★★★★★
★★★★★
Kimberly V - August 24, 2022
Verified Purchase
Perfect fix!
Arrived quick and fixed our dishwasher. Just wish we would’ve bought this part before the heat core!
★★★★★
★★★★★
Jeff K - February 26, 2022
Verified Purchase
Fixed my dishwasher problem
Perfect fit and easy to install
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Customer Repair Stories
Average Repair Rating: 3.6 / 5.0, 21 reviews.
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Dishwasher wasn't heating water
So after noticing some horrid food waste build up in my 9 year old dishwasher, I determined it wasn't heating the water during the wash cycle. I came on here to check how to replace the heating element and was surprised when the flood switch was instead strongly recommended as the first repair step.
I ordered the part, and prep
... Read moreped the dishwasher for the repair (Pro-tip: Clothes pin attached to the bottom of the flood switch wiring harness ensures it doesn't slip down below the opening during the part swap!). The part swap and reassembly only took 5-10 mins or so after prep and dishwasher is now heating water and running great again. Many thanks to partselect.com for the detailed installation guides/videos and the parts recommendations!
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Daniel from CONCORD, NC
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Nutdriver, Pliers, Screw drivers
1 personfound this instruction helpful.
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The dishwasher was filling normally, but was not heating the wash water nor heating the dishes for the final dry. Dishes were not being properly cleaned and were not at all dry after the cycle.
I replaced the flood switch following instructions shown in readily available YouTube videos. In short, you remove the coarse and fine filters, then take out the bracket holding in the flood switch and finally the switch itself. After replacing the switch, the dishwasher works normally again.
I replaced the Flood Switch Part Number: WD21X10519. I found that be removing the bottom front cover under dishwasher door, there was a small black plastic clamp holding up the wiring cable. By disconnecting the clamp, it gave me a few more inching of wire inside the machine, which made disconnecting old flood switch easier. It also
... Read morehelp in installing the new flood switch. Then finally i reinstall the clamp cable under the machine to finish the job.
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Robert from DANBURY, CT
Difficulty Level:
Really Easy
Total Repair Time:
30 - 60 mins
Tools:
Nutdriver, Pliers
1 personfound this instruction helpful.
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Doesn't complete dry cycle, no clean light, random noises as if door was closing
After replacing UI board, I replaced the mainboard. still did not solve the problem. The element tested good and I had removed the flood switch, rinsed and blew it out so it rattled but the damage was done. Replacing it made the dishwasher heat water and heated during dry cycle. Removed fine filter, removed course filter, removed two
... Read morescrews with nut driver, removed flood sensor and then reversed. A year or so ago, the dishwasher flooded for no apparent reason, wondering if that was the beginning end of the switch!
dishes were not dry at end of completed wash cycle
Followed the instructions on the video, it was pretty straight forward. It was helpful to know what to expect before hand like removing accumulated water in the drain before removing the flood switch so as not to have that water drain under the dishwasher. Knowing to have a nut driver with magnetic tip was helpful in removing and reinsert
... Read moreing the screws. all in all it was pretty easy repair.
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louis from FRANKFORD, DE
Difficulty Level:
Easy
Total Repair Time:
30 - 60 mins
Tools:
Nutdriver, Pliers
1 personfound this instruction helpful.
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No heat in both water and air
Followed troubleshooting procedure to determine that defective Flood Switch caused the problem and not the Heating Element. Replaced only the Flood Switch. I also replaced a deteriorated door gasket.
De-installed dishwasher from cabinet, removed door, and tipped unit over with back of tub resting on floor.
I follow
... Read moreed the document referenced here for the troubleshooting and repair procedures: GE Appliances Technical Service Guide, 2012 GE Dishwasher, 31-9226.pdf available on web.
Turned off pier at breaker. Removed dishwasher from under counter after disconnecting water line from dishwasher and drain tube from under sink. You might get a little residual water but not much. Removed old flood switch took about 2 minutes. Replaced with new flood switch. Then tilted dishwasher back to get to plastic nuts that hold dow
... Read moren heating element. Set unit back down and removed old heating element then replace it with new one. Replace plastic nuts that hold element. Exact parts makes job easy. Them put water hose back on an put washer back in place hooked drain hose back up. Turned water and power back on. Tested unit worked perfectly. Hardest part of job was putting the dishwasher back into counter and getting the Instalation back on top. Parts replacement time was about 10 minutes. Disconnecting and reconnecting and replacing dishwasher 40 minutes. But I wouldn’t pay anyone to do this because it’s really not difficult.
Wife said Dishes were not Drying and leaving Spots !
I tested Heating Element with Ohm Meter-Direct Short (if open it would have been bad and I would need to replace the element. Per the Website Troubleshooting for GE dishwasher, it said Heating Element (65%), Float Switch (32%), or Computer Board (only 3% Chance of it being board). So I ordered Float Switch. Later I noticed that the di
... Read moreshwasher would not change wash cycles from Heavy, Normal or Light. So I turned the Circuit Breaker on and off. This fixed the Wash Cycle. When the Float Switch Came in, I installed it in a few minutes watching the video on the GE Troubleshooting Page. Later when it was running I checked the operation and when I opened the door, the wife says seeing the steaming water, You fixed it, the Water is Hot now ! It was all about Hot Water, not the Heating Element at all ! And I think everything was fixed when I flipped the Circuit Breaker on and off and re-set the computer board. I think replacing the Float Switch was good maintenance, cause it was really dirty and needed to be replaced soon anyway. And it may have avoided my wife's next misdiagnosis with our dishwasher. This was 2 weeks ago, and all is well. Sincerely, Scott
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Randal from TWIN FALLS, ID
Difficulty Level:
Really Easy
Total Repair Time:
Less than 15 mins
Tools:
Pliers, Socket set
2 of 2 peoplefound this instruction helpful.
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No boost in water temperature; water temperature during wash cycle not hot enough; dishes not drying
Had to trouble shoot to isolated the true fault condition. Checked heating element was good Researched symptoms on YouTube Removed and inspected float switch part Ordered and replaced part.
David from CARY, NC
Difficulty Level:
Easy
Total Repair Time:
1- 2 hours
Tools:
Nutdriver, Screw drivers
1 personfound this instruction helpful.
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Questions and Answers
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45 questions answered by our experts.
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Jeff
January 2, 2018
Our dishwasher was getting little or no water flowing during washing. We removed the filter assembly (part 451) to clean it and found it was full of crud. We cleaned out most of the crud and tried to remove the remaining crud around the flood switch (308), then ran it again this morning. I listened and thought i heard some water running, but when i opened it after the cycle finished, it was still dry, and most or all of the dishwasher liquid residue left from the previous failure to clean was still here. I tried turning the flood switch, and was able to twist is up to about 90 degrees, but it did not come out. Is this likely to be a flood switch problem, and if i need to replace it, how can i get it out? -- thanks, jeff hecht
For model number GDF540HGD1WW
Hello Jeff, Thank you for your inquiry. The two parts we would recommend checking to solve this issue are the flood switch and water inlet valve. You can test the parts with a multimeter. If you are unfamiliar with how a multimeter functions, there are YouTube videos available to assist you. To remove the flood switch, You will have to remove the lower rack, remove the lower wash arm, remove the lower coarse filter, removed fine filter, and you may have to remove the filter adaptor as well. Removed two 1/4" head screws with nut driver to then remove float switch, unplugged float switch, plugged in new switch, and reverse the process. Hope this helps!
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Paula
December 20, 2017
Unit tries to fill but no water is being drawn from water line. Need to know if you think it is the flood switch. Prior to this, during heated dry there was bad odor coming from steam escape vent at front of washer. Heat coil are covered with what i believe is lime. Would any of this have caused the unit to not draw water? Also, do i have to remove the unit to work on the flood switch or can it be done in place/
For model number GDT625PSJ2SS
Hi Paula,
Thank you for your question. It sounds like you may need to take a look at your water inlet valve. That would be my first go to for what would not be bringing water into your appliance. You should be able to test that valve with a multi meter. Yes you would have to remove the unit to get to the valve and check the flood switch as well. I hope that helps. Good luck with your repair.
12 people found this helpful.
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Traci
January 7, 2019
The water is not getting hot in my dishwasher. I've already changed the heating element. Will this part help? I watched a few videos on youtube that suggests it.Thanks
For model number GDT530PGD2BB
Hello Traci, Thank you for the question. Yes, the next part it is suggested to replace is the Flood Switch. The flood switch controls the hot and cold water filling your washer tub to ensure the proper amount of water. Hope this helps!
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Joe
April 18, 2018
How is the float switch removed ?
For model number GDF570SSF6SS
Hi Joe, Thank you for the question. to install the switch you will need to first disconnect the power to the dishwasher.Next remove the toe kick panel and the floor protector pan. Next remove the tie holding the harness to the sump and remove the lower rack and lower spray arm. Remove the filter vents by turning counter clockwise to remove. Remove the twist and lock fine filter and the course filter. Remove the tab lock filter adapter by pulling up on the adapter. Remove any water in the sump area. Remove the two 1/4 in. hex head screws holding the floor plate and flood switch and remove the floor plate and flood sensor. Lift the sensor and floor plate out of sump. Remove the harness to the flood switch assembly. Reverse the steps to install replacement part. Hope this helps!
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CHAZ
December 7, 2018
My dishwasher is only 2 years old but doesn't dry the dishes now, they used to come out scolding hot when it was done. Now they are drenched and sometimes smell from sitting wet too long. I tested the element and it tested good, but i still went ahead and replaced it to make sure it wasn't the problem. It still doesn't dry the dishes. I was told by a friend that it may be the high limit thermostat. I remember seeing something like that in connection with the element underneath but i can't find the part number anywhere to replace it. Any other ideas on how to get the part number or other ideas of what it could be??
thank you
For model number GDT580SMF8ES
Hello Chaz, thank you for your question. This unit doesn't have a thermostat or fuse on it that would relate to the heating cycle. If the heating element was replaced and did not fix the issue, we would recommend replacing the electronic control board part number PS11721498. I hope this helps!
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Michelle
October 24, 2017
My dishwasher is not draining and i have checked the drain pipe on both ends and there is no clogging and when it goes into the drain phase i hear what sounds like the pump trying to work but no water is being removed from the inside.
For model number GDT580SGF4BB
Hi Michelle,
Thank you for your inquiry. There are some parts that you will need to check to see which one is causing the issue. You will need to check the drain pump, the drain hose and the float switch. I hope this helps. Thank you and have a great day!
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Todd
April 25, 2019
Hey all! Trying to avoid getting soaked with a repair bill on my GE profile dishwasher, hoping to get a bit of insight or confirmation that the flood switch is the most likely problem. We've had the dishwasher for about 4 years, did not really do much maintenance at all until recently when the dishes starting coming out wet. Cleaned out the filter at the bottom of the unit, which was quite loaded up with residue, but would still pass water "pretty well". Neither the type of cycle selected, "power dry" setting, nor the temp of the input water (by running sink until hot) has any noticeable effect.Thanks for your help!
todd
For model number PDT750SSF2SS
Hi Todd, thank you for your question. The flood switch can sometimes cause this issue, however most of the time the first part to check is actually the heating element for your appliance. That part tends to be the issue more times than not. You can test that part with a multi meter. The element should be reading between 0 - 50 ohms of resistance to be in working condition. I hope that helps. Good luck with your repair.
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Janette
June 18, 2019
Hello there, yesterday I started the cycle on the dishwasher came back into kitchen about 1/2 hour later and there was water all over the floor. When opening the door water came flooding out the front door on both sides, pulled the dishwasher out, checked pipe no blockage, had pipe in sink started rinse cycle, water had no problem going up pipe and into sink. I thought the problem was solved, bu I started the wash cycle, about 15 - 20 minutes in the cycle, the water once again started coming out but this time it seemed like it was coming out just under and behind the door. Help, I am going through a lot of towels. LOL! Thank you for any help. Sincerely, Janette
For model number GDF510PGJ2WW
Hi Janette,
Thank you for your question. If the dishwasher is leaking, there are some parts that you will need to check to see which one is causing the issue. You will need to check the gasket, the gasket tub plastic, the water valve assembly, the door vent seal, the hose loop drain, the diverter assembly and the drain pump. I hope this helps. Thank you and have a great day!
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Rebecca
January 20, 2018
Under the dishwasher there is a wire harness with a little plug-in connector on it. Somehow the wires were all wrapped together and the connector piece is off. Do you have that part and what would it be called? It goes to the flood switch.
For model number GDF520PGD4BB
Hello Rebecca,
Thanks for your question. The connector for your model is part number PS8756335, it is known as the DC Harness Assembly.
I hope this helps.
Will not drain. I replaced the drain pump wd35x20878, but still won't drain completely. Sound like pump kicks on and off. Some water does enter the garbage disposal.
For model number GDT580smf4es
Hello David, thank you for your question. We would recommend testing the float switch and turbidity sensor, Part Number: PS11762980 and PartSelect Number: PS8690623. If these parts are in working condition, the issue would be with the electronic control board as you've already replaced the drain pump. I hope this helps!
