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Sample Model Number Tags
Model numbers can be made up of numbers (1005400, for example) or a combination of letters and numbers (LAT1000AAE). The model number will most likely appear on either a paper sticker or a metal plate. Your appliance's model number tag may look similar to the sample model number tags shown here (model number highlighted in yellow):
This is a manufacturer-built pressure sensor for dishwashers. This pressure sensor, also known as a pressure switch, is designed to monitor the water pressure, communicate with the control board of the dishwasher, and accurately calculate the necessary amount of water for the washing cycle. If this pressure sensor is bad or not working properly, it will cause over and underfilling of your dishwasher, as well as excessive noise while in operation. To replace this pressure sensor, you will need a screwdriver and wrench to gain access and remove this part, and further disassembly of your dishwasher may be required. This sensor is sold individually and does not come with any other parts.
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OEM stands for Original Equipment Manufacturer. Simply put, this means that the company who made your appliance is also supplying the replacement part for it.
Keep searches simple. Use keywords, e.g. "leaking", "pump", "broken" or "fit".
Sorry, we couldn't find any existing reviews that matched. Try using some different or simpler keywords.
★★★★★
★★★★★
Diane F - March 12, 2026
Verified Purchase
Pressure sensor asm
Fast delivery, part was what I needed to get my dishwasher up and running again!
★★★★★
★★★★★
Steven S - November 16, 2021
Verified Purchase
Works great but might have been unnecessary
Removing the old part (which is easy to do without having to move the dishwasher), there was lots of gunk and stuff in the part. I replaced it because I had the part but kept the old one after cleaning it - likely that the part is fine, just the design of the dishwasher is poor allowing junk to build up (and I do regular vinegar rinses of the dishwasher).
★★★★★
★★★★★
Willie M - July 8, 2024
Verified Purchase
Spare
Haven’t used part yet because I bought it to be a spare. Pressure sensor gets plugged with gooey junk so will do a swap out if washer stops working with present sensor.
It’s an easy fix and accessible at front of washer.
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Average Repair Rating: 2.9 / 5.0, 2 reviews.
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Keep searches simple. Use keywords, e.g. "leaking", "pump", "broken" or "fit".
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H2O error code. Not filling with water randomly
Turned off power from breaker at electric panel. Removed kick plate and mounting screws. Disconnected supply line from hot water valve after shutting off. Disconnected flex hose drain. Pulled dishwasher out. Used channel locks to undo water valve supply hose. Used nut driver to remove water valve bracket and disconnected sensor plug in .
... Read moreInstallation was opposite of removal. Fill sensor was a twist and turn and a disconnect from sensor plug. I believe my problem was just the fill sensor but decided to do both parts just in case it was the water fill valve so I didn’t have to pull the appliance out again. Parts were cheap enough to do both.
Dishwasher would not fill with water and would shut off
I found it online! There were step by step instructions that were easy to understand. I have never had to do anything like this in my life, only recently had to start doing everything around the house myself due to husband's illness. The repairman came out, charged me $100 to determine what the dishwasher needed & left me with the p
... Read moreart number. He was going to charge me $389 to install the part and they were over charging for the part. The repairman suggested I just get a new dishwasher. I ordered the part from the website at 1/2 the price that the other place charges and found it on line. With the step by step instructions and the online page, I successfully installed it MYSELF. Saved me a ton of $$. I LOVE the website Thank You!!!!
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8 questions answered by our experts.
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Nathan
May 22, 2023
Dishwasher wont stop draining.. I start a cycle and it starts the draining like it should - but the drain cycle does not stop. The drain motor even keeps draining after I open the door..
For model number gdt645sgn0bb
Hello Nathan, thank you for your inquiry. Based on the description that you have provided, we would recommend replacing the pressure switch, part number PS12741258. It senses the water level and sends signals to the electronic control board. We hope this helps, good luck with this repair!
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Coley
July 4, 2023
Washer indicates FED code and quits.
Will bad pressure switch cause this.
I don’t see a float switch in this model.
Drain hose is clear and hi looped.
Thanks!!
For model number gdt530pgp5bb
Hi Coley, thank you for getting in touch. Based on our research, the FED code, or flood error detection code, indicates a high water level in the dishwasher. To solve this issue, you may first need to make sure the filter is clean. If that is not causing the issue, then the pressure sensor, part number PS12741258, is most likely faulty and may need to be replaced. We hope this helps!
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Annie
June 13, 2024
Hello. Initially, my dishwasher wouldn't fill, so I ordered a new water valve on here and replaced it, and it worked like normal. Now, it fills with water and won't advance the cycle and the water cycle has a blinking light. It drains fine. My plumber won't come and look at it, so I'm on my own. Any thoughts? Thank you for your help!
For model number GDF565SSN3SS
Hello Annie, thank you for reaching out. Based on our understanding of the issue, we would suggest checking the pressure switch, part number PS12741258, to solve the problem. It senses the water level and sends signals to the electronic control board. We hope this helps.
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Andrew
June 14, 2024
Will this part allow the water to continually run out while on the wash cycle
For model number GDT665SFN0DS
Hi Andrew, thank you for your inquiry. The pressure sensor you mentioned senses the water level and sends signals to the electronic control board. If your dishwasher is running water continuously, the issue could be most probably with the pressure sensor, and you may need to replace it to fix the issue. We hope this helps!
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Marilyn
November 18, 2023
dishes are not drying and water is not hot in dishwasher
For model number GDT630PYRFS
Hi Marilyn, thank you for reaching out. Based on our research, the issue is with the heating element part number PS16659472. We would recommend checking the heating element to fix the issue. We hope this solves your problem!
fills washes drains stops light blinks nine times pauses and repeats wont start again . could it be pressure sensor
For model number hdf310pgrww
Hi Kirby, thank you for reaching out. Based on the description that you have provided, we would recommend checking the following parts to fix the issue: heating element, part number PS16659472, drain pump, part number PS12730507, and door latch, part number PS16659468. If checking these does not help, then you may need to replace the control panel assembly, part number PS16219751. We hope this sorts out your problem!
Our dishwasher would not fill when we started it. I checked the fill valve and it is working fine. I was looking for the float switch and could not find one. I found the pressure switch. There are no error messages. I can get the dishwasher started if I would prime it by pouring water into the filter. Where did I look for the problem?
For model number GDP665SYNFS
Hello Ron, thank you for reaching out. Based on the description that you have provided, we would recommend checking the pressure sensor, part number PS12741258, to fix the issue. The pressure sensor senses the water level and signals the electronic control board. If it is faulty, the washer may not fill with water. We hope this solves your problem!
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Michael
April 20, 2025
H20 error code. Does this mean that the Pressure sensor ASM is bad (WD21X25468)?
For model number GDP665SYN3FS
Hello Michael, thank you for contacting us. The error code you mentioned indicates that the dishwasher is not getting enough water or no water at all. Yes, you may need to check the pressure sensor assembly, part number PS12741258, to solve the problem. It monitors the water pressure and helps in filling the dishwasher. We hope this helps!
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