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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):
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.
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Part Videos
Replacing your LG Dishwasher Sensor Assembly
Troubleshooting
This part works with the following products:
Dishwasher
Part# 6501DD2001A replaces these:
AP4457564, 6501DD2001A, 6501DD2001B
Questions and Answers
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6 questions answered by our experts.
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Tom
April 7, 2022
HE error. I ohm tested the heating element Okay. Is there a heating sensor or thermistor and a heating relay that can be purchased. Thanks
For model number LDF7551ST
Hi Tom,
Thank you for your question. The HE error code usually means that there is an issue with the heater circuit. There is no sensor or thermistor listed for your washer. If you have tested the heating element and it tested okay, try adjusting the temperature of the water coming into the dishwasher to see if this resolves the issue. If not, try resetting the dishwasher but cutting power to it for 10 seconds and plugging it back in. Then start a new cycle to see if the code will appear again. If it does, check for any loose or damaged wiring. Also check the electronic control board. It may have a burnt relay. If you have any questions, please let us know. We are open 7 days a week. We look forward to hearing from you!
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Pamela
May 5, 2024
Gives HE error. Doesn’t dry the dishes. Replaced the element. Not fixed. Is the temp sensor the next recommended replacement?
For model number LDS5540ST
Hello Pamela, thank you for reaching out. According to our research, the error code HE means a heater error. This error occurs when the unit is unable to heat the water or the water was overheated above 149 degree Fahrenheit. As you have already replaced the heating element and still facing the issue, we would recommend replacing the main control board, part number PS7792746, to solve the problem. Your model does not have any temperature sensor. We hope this helps!
I have an LG dishwasher, model number LDS5040ST. I was getting a heating element error, so I replaced the heating element, but now my dishwasher is skipping a cycle or, on the quick cycle, it gets stuck at 15 minutes. It also still throws a heating element error at the end of the skipped-cycle wash. Would the thermostat or heat sensor be the next step, or would I move on to the control board? Thanks.
For model number LDS5040ST
Hello Brent, Thank you for contacting us. Checking your model, the heating element actually includes the temperature sensor. PS3529176 is a water flow sensor, and PS7785590 is a turbidity sensor. It is possible there is a wiring issue or a control board issue, so check for any visible damage or loose connections. Also check the flow of water going into the dishwasher to see if you can increase the temperature through the water supply. We hope this helps.
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Robert
September 3, 2025
dose this model have a heat sensor
For model number LDF7774ST
Hi Robert, thank you for reaching out. Yes, the temperature sensor comes attached to the heater assembly, part number PS7788065. We hope this information helps!
I installed a new drain pump, and it still calls an OE error. Just wondering if I should replace the water flow sensor?
For model number LDF7561ST
Hi Jeff, thank you for reaching out. The OE error code indicates that the unit has detected a drain issue. If replacing the drain pump did not help, we recommend replacing the main control board, part number PS11710961, to fix the issue. Good luck with this repair!
Hi my dishwasher intermittently gives a IE error code. I have good water pressure going to it and already removed hose to test. I replaced water inlet valve because that’s what every forum said. It still gives the IE code sometimes. I opened the door and the sump was full. Do you think the float switch could be failing?
For model number LDF8072ST
Hello Alex, thank you for the question. The dishwasher "IE" error indicates that the unit is not reaching the required water level within the allotted time, even if the sump appears full. As you have replaced the water inlet valve, the issue is most likely a faulty flow meter or sensor, part number PS3529176. The flow meter measures how much water enters the unit. If it fails, it cannot send the signal to the control board to stop filling, causing an IE error even if the unit has water. We hope this is what you were looking for!
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Model Cross Reference
This part works with the following models:
PartSelect Number: PS3529176
Manufacturer Part Number: 6501DD2001A
