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Defrost Thermostat

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6 Reviews
$ 47.21   In Stock

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PartSelect Number PS11743535
Manufacturer Part Number WP67003426
Manufactured by Whirlpool
Product Description

Defrost Thermostat Specifications

This defrost thermostat is a temperature sensing mechanism used in freezers and refrigerators. The thermostat senses the rise in evaporator temperature during a defrost cycle and turns the defrost heater off once frost is melted from the coils. If the freezer is not defrosting, or the freezer section is too warm, it is best to replace the thermostat to fix the problem. The tools needed for this project are: 1/4 inch nut driver, flat blade screwdriver, needle nose pliers, wire strippers, and pair of wire nuts. Remember to unplug your appliance from the power source for safety and refer to the manual provided by the manufacturer for installation instructions.

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Troubleshooting
This part fixes the following symptoms:
Fridge too warm | Freezer not defrosting | Freezer section too warm | Frost buildup
This part works with the following products:
Refrigerator.
This part works with the following products:
Kenmore, Maytag, Amana, KitchenAid.
Part# WP67003426 replaces these:
AP6010356, 12639302, 12639302SP, 67003426, 8208287
Questions and Answers

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6 questions answered by our experts.
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    Sandie
    May 6, 2018
    Our frig is too cold. Freezes everything. Dial is all the way down. Is this the part for us?
    For model number 59673502201
    Hi Sandie, Thank you for the question. I first suggest checking the Damper, PartSelect Number: PS11743533 to see if it is stuck open and allow to much cold air through from the freezer. You can also test the defrost thermostat. The best way to do this is to remove the thermostat from the refrigerator so you can control the temperature of the sensor. You can let the sensor warm up to room temperature. With the sensor warmed up to room temperature the sensor should read approximately 6.2K Ohms at 68°F. With the thermistor submerged is a glass full of ice water, the sensor should be very close to 32°F which should read approximately 16.3K Ohms. If the values that you are getting are far off from these readings, then the sensor is bad and should be replaced. Hope this helps!

    6 people found this helpful.

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    Rechelle
    July 31, 2018
    Every couple days my freezer coils freeze over. The freezer is ice cold but the refrigerator gets warm. I defrost the coils and it will work for a couple days but then it starts to freeze over again. Where should i start? Defrost thermostat? ???
    For model number MFF2557KES
    Hi Rechelle, Thank you for your question. Yes. The two parts to test first would be your defrost thermostat and your defrost heater. You may also want to take a look at your thermistor inside of your freezer as well. If those parts are fine, the problem may lay in your control board. I hope that helps. Good luck with your repair.

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    Ray Whitaker
    June 4, 2019
    Drain froze over in freezer. Check defrost heater and measures 28 ohms. This seem reasonable. Measured defrost thermostat at 20f and at 70f. Number stay the same . How do you test this part?
    For model number JFC2087HRS
    Hello Ray, thank you for writing. You can test the Defrost Thermostat with a multi-meter. The multi-meter will display 0.000 if the Defrost Thermostat is in the closed position, and should be in the closed position when it is cold. To check to be sure that it is opening at the proper temperature, place it in water and slowly heat the water. When the Defrost Thermostat opens, the multi-meter will display an O.L., indicating that there is no continuity through it. If there is no 0.000 when it is cold, or an O.L. when it is hot, then the thermostat is bad and should be replaced. We hope this helps.

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    John
    October 24, 2019
    I just replaced the defrost thermostat on my 1 and half year old Amana fridge with a Whirlpool 67003426 thermostat, but I was wondering if there was a more robust thermostat on the market in case this one has an early demise. Thank you!
    For model number ABB1924BRW00
    Hi John, Thank you for your question. Based on the model number you provided, this would not be the correct thermostat for your refrigerator. The part number listed under your model number for the bi-metal defrost thermostat is PS11749348. This would be the only defrost thermostat listed for your model. I hope this helps. Thank you and have a great day!

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    Ann
    December 27, 2019
    Our freezer is working but not refrigerator. There is ice built up on coil . What part should we change first?
    For model number MBF2256KEB
    Good Day Ann. Thank you for your question in regards to your unit (Model Number MBF2256KEB). Based on our research you may need to replace one or more of the following parts: 1) Defrost Thermostat (PartSelect Number PS11743535). 2) Defrost/Evaporator Heater (PartSelect Number PS11743472). You can order these parts either online at our website www.PartSelect.com or by calling us by phone at 888-260-4310. Best Regards.

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    Karim
    January 10, 2018
    My compressor does not kick in. We had a power surge the evening before it quit. I have already replaced the compressor start device and capacitor, which did not fix the problem. It looks like everything passes the test, does that mean i need to order a new control board?
    For model number JBL2086HES
    Hi Karim, Thank you for your question. If you have replaced the compressor start device and the capacitor and you have checked the other parts, I would check the electronic control board to see if it is working correctly. I hope this helps. Thank you and have a great day!

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      Part Videos

      Replacing your Kenmore Refrigerator Defrost Thermostat

      Customer Repair Stories
       Average Repair Rating: 3.1 / 5.0, 6 reviews. What's this?
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        Sorry, we couldn't find any existing installation instruction that matched.
        Freezer cold, refrigerator warm
        Overload relay accessible from back, by compressor unit. Very easy to change out. Diagram from your site placed defrost thermostat in same area.It wasn't. Found another diagram, showed it in refrigerator light area, took that apart, not there. Yet another diagram showed it in the duct work area at back of refrigerator cabinet. Not there. Finally removed back of freezer compartment, found thermistor and thermostat with the fins. Clipped wires, wired in parts, quick fix. Longest amount of time was spent finding the old parts to replace them. Actual replacement took less than 15 minutes. Refrigerator holding at 35 degrees set on 2 now, better than ever. Total cost, less than $120, doing iy ourselves....priceless.
        • Gordon from Ben Wheeler, TX
        • Difficulty Level:
          Easy
        • Total Repair Time:
          1- 2 hours
        • Tools:
          Nutdriver, Pliers, Screw drivers
        • Parts Used:
          W10613606, WP67003426, 12002355
        171 of 275 people found this instruction helpful.
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        The refrigerator was not getting cold and the coils were not defrosting.
        Start by removing the freezer door and inner baskets so you have some space. Next, take out the ice maker by removing the 3 screws that attach it to the side and unplug it from the harness. Then the cover for the thermistor and the fan vent should be popped off carefully leaving the back cover only. The back cover is held on by 4 screws, one in each corner. Remove all 4 screws and carefully loosen the back cover by pulling the top forward and laying it level to pull it out. Behind the cover are the coils and other components. If the coils are covered with ice they should be defrosted by using a blow dryer. Once the ice is clear, the thermostat is located towards the top left clamped onto a copper pipe that circles up and around. Carefully pull it off the pipe and cut the wires making sure you leave enough to reattach the new ones with a butt connector. Strip about 1/4 inch of insulation off the wires and crimp both ends into the butt connector making sure they are tight. Heat shrink is highly recommended. Clamp the new thermostat to the copper pipe where the old one used to be and your almost done. Replace the back cover the opposite of the way it was pulled out by putting it in flat with the bottom part in front. Once it is all the way to where it needs to be, push the top upwards while sliding the bottom downwards, then push it in flat against the back. It can be bent slightly if needed. Put the screws back in that hold it on and replace the plastic covers. Then reinstall the ice maker being sure the hose for the water is correctly positioned so that the water goes into the ice maker. Turn it back on and put the baskets and door back on and you're done.
        • Cheryl K from Pinellas Park, FL
        • Difficulty Level:
          A Bit Difficult
        • Total Repair Time:
          30 - 60 mins
        • Tools:
          Screw drivers
        • Parts Used:
          WP67003426
        146 of 163 people found this instruction helpful.
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        COILS WAS ICING ON REFRIGRATOR SOLID ICED FOUND ENTIRE COILS
        CHECK DEFROST THERMOSTAT WITH VOLT OHM METER AND FOUND THERMOSTAT BAD ALSO OHMED OUT HEATER AND HEATER CHECKED OK INSTALLED HEAT SRINK CONNECTORS ON NEW DEFROST THERMOSTAT PUT SYSTEM BACK INTO O
        PRATION ALSO CHANGED WATER FILTER ON REFERGRATOR
        SYSTEM WORKING OK AND NO ICING OF COILS THANKS WADE BOYLES
        • WADE from PILOT MTN, NC
        • Difficulty Level:
          Very Easy
        • Total Repair Time:
          1- 2 hours
        • Tools:
          Nutdriver, Pliers, Screw drivers, Socket set
        • Parts Used:
          WP67003426
        4 of 4 people found this instruction helpful.
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        Freezer would not defrost, refrigerator was warm, no airflow into fridge
        Info on your site allowed me to determine the most likely cause of the problem, defrost thermostat, and that fixed it. Good installation instructions on the site too. Part was super easy to install. Hardest part was removing the snap-in/screwed-in plastic parts that held the sliding baskets and back panel in place. Didn't break any.....Thank You!
        • SCOTT from ELECTRIC CITY, WA
        • Difficulty Level:
          Easy
        • Total Repair Time:
          30 - 60 mins
        • Tools:
          Screw drivers, Socket set
        • Parts Used:
          WP67003426
        4 of 6 people found this instruction helpful.
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        Refrigerator would not cool, while the freezer kept food frozen and the ice maker worked fine. Also, noticed frost build up at the rear of the freezer compartment
        First, turned off the circuit breaker. Then: 1. Removed all food, , wire sliding baskets, and the ice bin.
        2. Removed ice maker by removing the electrical connector from the socket in the rear panel, removed the single bottom screw with a 1/4” nut driver, loosened the 2 top screws with a 1/4” nut driver, and lifting the unit up and off the 2 loosened screws.
        3. Removed the freezer door by loosening the 4 screws( 2 on each side) with a 1/4” nut driver and then lifting the door face off the loosened screws.
        4. The next task is to remove the panel at the rear of the freezer compartment: use a flat blade screw driver to compress the side clips that hold the ice maker electrical socket, pushing it into the space behind the rear panel, then removing the rear plastic cover in the center of the rear panel, and finally removing the thermistor cover on the right rear upper corner of the rear panel( separate the thermistor from this piece, threading it through the slot in the top of the plastic cover.
        Now, the rear panel can be removed by removing the 4 1/4”” hex head screws with the nut driver and gently easing the panel from its position.
        5. Now comes the hard part: the defrost thermostat and most of the surrounding “plumbing” was encased in ice. I used a hair dryer to melt the ice, which created an overflow of water drawing into the collection pan; get ready to mop up this water.
        6. With ALL the ice melted( this took over an hour), I simply cut the 2 wires, stripped the feed ends, removed the defective unit, clipped the new thermostat to the copper tube where the old unit was clipped, cut excess wire/stripped the new wires and used 2 orange wire nuts to connect each wire.
        Now all the parts and pieces can be reinstalled in the reverse order
        • Carl from EAST LYME, CT
        • Difficulty Level:
          Really Easy
        • Total Repair Time:
          30 - 60 mins
        • Tools:
          Nutdriver, Screw drivers
        • Parts Used:
          WP67003426
        2 of 2 people found this instruction helpful.
        Was this instruction helpful to you?
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        The refrigerator compartment kept getting warm.
        The vents at the back of the freezer were constantly getting packed with ice. A repairman failed to spot the problem. I used Partselect's web site to do my own analysis and determined that it was the defrost thermostat.
        I followed the web site's instructions, which were exceptionally good. Behind the rear wall of the freezer was a lot of ice on the cooling fins and heavily encrusted over the old thermostat. (It was not really difficult, but I am in my 70s and no longer do things like this on my own.)
        After replacing the part, I checked the ohms of the old part and found it to be faulty. Since then, the refrigerator has been working great. I wish I had started here. The repairman I had hired replaced the "control board" at significant expense. I doubt very much that anything was wrong with the old control board.
        Many thanks to Partselect for an exceptionally helpful web site.
        • Richard from SAN FRANCISCO, CA
        • Difficulty Level:
          A Bit Difficult
        • Total Repair Time:
          30 - 60 mins
        • Tools:
          Nutdriver, Screw drivers
        • Parts Used:
          WP67003426
        1 person found this instruction helpful.
        Was this instruction helpful to you?
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          Customer Reviews
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          6 Reviews
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              Model Cross Reference
              This part works with the following models:
              PartSelect Number: PS11743535
              Manufacturer Part Number: WP67003426
              Brand
              Model Number
              Description
              Kenmore
              59665232400
              Refrigerator
              Kenmore
              59665232401
              Refrigerator
              Kenmore
              59665232402
              Refrigerator
              Kenmore
              59665234400
              Refrigerator
              Kenmore
              59665234401
              Refrigerator
              Kenmore
              59665234402
              Refrigerator
              Kenmore
              59665239400
              Refrigerator
              Kenmore
              59665239401
              Refrigerator
              Kenmore
              59665239402
              Refrigerator
              Kenmore
              59665262700
              Refrigerator
              Kenmore
              59665264700
              Refrigerator
              Kenmore
              59665269700
              Refrigerator
              Kenmore
              59665332600
              Refrigerator
              Kenmore
              59665333700
              Refrigerator
              Kenmore
              59665339700
              Refrigerator
              Kenmore
              59665932300
              Refrigerator
              Kenmore
              59665932400
              Refrigerator
              Kenmore
              59665932401
              Refrigerator
              Kenmore
              59665932402
              Refrigerator
              Kenmore
              59665934300
              Refrigerator
              Kenmore
              59665934400
              Refrigerator
              Kenmore
              59665934401
              Refrigerator
              Kenmore
              59665934402
              Refrigerator
              Kenmore
              59665939300
              Refrigerator
              Kenmore
              59665939400
              Refrigerator
              Kenmore
              59665939401
              Refrigerator
              Kenmore
              59665939402
              Refrigerator
              Kenmore
              59665962700
              Refrigerator
              Kenmore
              59665964700
              Refrigerator
              Kenmore
              59665969700
              Refrigerator

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