This part monitors the temperature and makes sure the compressor cycles on and off.
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Troubleshooting
This part works with the following products:
Refrigerator, Freezer.
Part# 6615JB2005H replaces these:
AP4438477, 6615JB2005H, 6615JB2005M
Customer Reviews
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★★★★★
★★★★★
Timothy D - October 2, 2020
Verified Purchase
Worked Perfect
Googled the error code being displayed and determined the most likely cause was the defrost sensor. Little confusion based on LG calling it a defrost sensor and part select calling it a temperature sensor. Comparing part numbers showed they were one and the same item. Ordering was easy and arrived when promised. Using remove and replace video on youtube, took a bit under an hour to replace. Took pictures of how the old one was installed and used those to get the new part in in the same position. Did see where the old one had been pulled to tight with factory nylon ties. Took 14 years but finally failed at that point.
★★★★★
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MICHAEL K - June 3, 2019
Verified Purchase
No help
The part recommended was easy to install but did not solve the problem
★★★★★
★★★★★
Glen S - August 7, 2018
Verified Purchase
Exact part, fridge is working.
Kenmore Elite had er dH. YouTube said order defrost sensor. Took about an hour. Great!
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Customer Repair Stories
Average Repair Rating: 2.8 / 5.0, 1 reviews.
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Replace Thermistor in back of freezer
Turn off power, remove upper and lower drawers (may need to open upper refrigerator doors to remove large freezer bin,) remove drawer supports (upper and lower), remove rear freezer panel (trick is to loosen 4 screws on fan bumpout to get the panel to come free from the freezer side wall), test thermistor with multimeter (should have cont
... Read moreinuity or near zero resistance across 2 orange fuse wires) before cutting zip ties, cut zip ties holding Thermistor in place, remove old Thermistor, install new Thermistor, install new zip ties, replace rear freezer panel, install upper and lower drawer supports, install drawers, turn on power, should be fixed if error code doesn't return after 6 hours.
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Scott from JUPITER, FL
Difficulty Level:
Easy
Total Repair Time:
1- 2 hours
Tools:
Pliers, Screw drivers
14 of 19 peoplefound this instruction helpful.
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Questions and Answers
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9 questions answered by our experts.
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Jeffrey
October 19, 2017
Refrigerator works fine but freezer wont get below 32*
For model number LMX25964ST
Hi Jeffery,
Thank you for your question. I would suggest testing both your temperature sensor and your thermistor. You could also take a look at your run capacitor and start relay as well. If all of those parts are fine, it may be your electronic control board that is the issue. I hope this helps. Good luck with your repair.
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Matthew
February 17, 2018
Our LG refrigerator and freezer stopped working - the lights are still on. Any idea what could be wrong?
For model number LMX28988ST
Hello Matthew,
Thanks for your question. This could arise due to a faulty door switch. You may wish to test the part with a multimeter and replace it if it shows no continuity.
I hope this helps.
Does the p/n for the thermistor ( refrigerator defrost sensor) fit my fridge. P/n ps3529340 or 6615jb 2005h. Was told by a rep there that was the p/n when i asked.Thanks,
For model number LFC25776ST
Hello Mark, Thank you for contacting us. I have researched the model you have provided and have found the part you are looking for is PartSelect Number PS3529340. Hope this helps!
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RC
October 21, 2019
Compressor running but will not cool
For model number Lmxs27626D
Hi RC, thank you for your question. When you are having temperature problems in your fridge, there are a few parts that could cause the issue. You can use a multi meter to test most of the parts. Make sure you cut power to your appliance before doing any repairs or tests. First you should test your defrost thermostat. Place the thermostat in ice cold water for 2-3 minutes after removing it from your appliance. It should be reading 0 ohms to be working correctly. Another part to check would be your defrost heater. Remove it from the appliance. It should be reading anywhere between 0 - 50 ohms to be working. You could check your temperature sensor. To find the correct reading for this part you will have to refer to your tech sheet that comes with your appliance. You can usually find this tech sheet behind the bottom grille of your fridge on either the right or left side. These are the most common parts that cause this issue in your appliance. So it is suggested you check them first. I hope that helps. Good luck with your repair.
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Erika
February 15, 2020
Our refrigerator is freezing the food and liquids.
For model number 79575556401
Hi Erika. Please read our guide here: https://www.partselect.com/Repair/Refrigerator/Refrigerator-Too-Cold/. Thank you for your question and good luck with your repair.
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Rob
December 6, 2022
Hello. My LG Refrigerator, model LFX25950SB keeps freezing vegetables in the bins (lettuce, onions, cucumbers, etc.) and items on the lower shelves. I've tried adjusting the temperature to the highest setting. Compressor continues to run and things keep freezing. Freezer temp seems just fine. What could be the culprit? Please help.
For model number LG Refrigerator: LFX25950SB
Hello Rob, thank you for your inquiry. According to our research, the issue could be caused by a faulty defrost sensor, part number PS3529165. If replacing it does not help, you may need to replace the damper assembly, part number PS3583329. It controls the cold airflow from the freezer compartment into the refrigerator compartment. Customer service is available 7 days a week if you need help placing an order. Glad to be of assistance!
If my freezer is continuously freezing with layers of ice on the walls will replacing this party help?
For model number LRFC25750SW
Hi Alex,
Thank you for your question. It could. I would suggest testing it with a multi meter first to double check. You may also want to check your defrost heater as well. I hope that helps. Good luck with your repair.
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DONNA
December 7, 2023
The freeze is not getting cold as it should be. What is going on? Can we replace a part?
For model number LMX25964ST/02
Hello Donna, thank you for asking. We would recommend checking the temperature sensor, part number PS3529162, to fix the issue. We hope this solves your problem!
Hi Glenn,
Thank you for your question. Yes, this would be the defrost sensor. If you need help placing an order for it, customer service is open 7 days a week and anyone will be happy to assist you. Please feel free to give us a call. We look forward to hearing from you!