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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 defrost thermostat kit is an essential component for maintaining proper temperature regulation in your refrigerator or freezer. Designed to monitor the evaporator coil temperature, it prevents overheating during the defrost cycle by opening the heater circuit when the coil reaches approximately 50°F (10°C). Replacing a faulty thermostat can resolve common issues such as frost buildup, inconsistent cooling, water leaks, or increased energy consumption. Installation is straightforward—follow your appliance’s manual for guidance and ensure the power is disconnected before starting.
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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".
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★★★★★
★★★★★
Mariama S - December 12, 2019
Verified Purchase
Great part. Easy to install.
My refrigerator was not getting cold, but my freezer was working just fine. It turns out the coils were frozen. I got a new defrost thermostat and replaced it. It’s back to working again, for now.
★★★★★
★★★★★
Cheryl W - November 9, 2019
Verified Purchase
Easy repair
Thanks to your help i was able to diagnose and repair the ice maker myself. Very easy repair.
★★★★★
★★★★★
Joseph R - November 27, 2018
Verified Purchase
What I needed.
As advertised, the thermostat was a like for like replacement for the old part. It arrived sooner than expected. It appears to have solved the ice maker problem in my refrigerator.
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Average Repair Rating: 2.8 / 5.0, 1 reviews.
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Frost build up behind "in refrigerator" ice maker. Ice maker mold temperature above 20 degrees inhibiting ice making
Used the following video link to replace thermostat:
https://www.youtube.com/watch?v=4JnBZuXpehw
Since problem was frost build up on coils behind the ice maker I figured the problem had to be the thermostat or the heater coil. All diagnostic tests on ice maker worked fine. Ordered both...50-50 chance. Turned out to
... Read morebe the thermostat, but replace both. Working good now.
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Ralph
January 26, 2018
Where does the defrost thermostat go? How far back into the ice maker housing and does that have to come out?
For model number EW23BC71IS8
Hello Ralph, Thank you for your inquiry. It's in the very back of the housing, you should just need to take the shelves and ice bucket out to access it. Although we do not have a repair video for this exact part number, I have included a link to a similar part to assist you. Hope this helps!
https://www.youtube.com/watch?v=sCnIUjjntQ8&list=PL3EB33F2356EAFCD4&index=74
1 person found this helpful.
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Steve
February 9, 2023
Ice maker keeps freezing up and not making ice, would the cause be the defrost thermostat?
For model number FFHB2740PS4
Hello Steve, thank you for reaching out. Make sure the water line is not plugged or damaged. If it is, replace it with part number PS3633241. If that is not the case, we would suggest checking the Water Inlet Valve, part number PS7321353, and Defrost Thermostat, part number PS3493212. We hope this sorts out your problem!
Defrost thermostat 240386402 does this switch just open and close or is there variable resistance as it warms up. I tested it by putting in another freezer and my original one changes resistance as it warms up and does not just open or close. Thanks for any help you can offer.
For model number FPHB2899PF2
Hello Craig, Thank you for the question. A defrost thermostat opens the heater circuit when the evaporator temperature rises above a preset temperature, 40°F (5°C) or more. We hope this helps.
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