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11743535-1-S-Whirlpool-WP67003426-Defrost Thermostat
11743535-1-S-Whirlpool-WP67003426-Defrost Thermostat 11743535-2-S-Whirlpool-WP67003426-Defrost Thermostat http://www.partselect.com/Schematics/Maytag/6MYIMTKW.gif

Defrost Thermostat

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$38.79
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PartSelect Number PS11743535
Manufacturer Part Number WP67003426
Manufactured by Whirlpool

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.

This part works with the following brands: Kenmore, Maytag, Amana, KitchenAid, Whirlpool, Jenn-Air, Crosley, Hardwick, Inglis, Dacor.

This part works with the following products: Refrigerator.

This part fixes the following symptoms:

  • Fridge too warm.
  • Freezer not defrosting.
  • Freezer section too warm.
  • Frost buildup.

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Installation Instructions Provided by PartSelect customers like you.

Average Repair Rating: 2.9 / 5.0, 3 reviews What's this?
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133 of 150 people found this instruction helpful

Parts Used:
  • Defrost Thermostat
Level of Difficulty: A Bit Difficult
Time to do repair: 30 - 60 mins
Tools: Screw drivers
Customer: Cheryl K from Pinellas Park, FL

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.

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152 of 251 people found this instruction helpful

Parts Used:
Level of Difficulty: Easy
Time to do repair: 1- 2 hours
Tools: Nutdriver, Pliers, Screw drivers
Customer: Gordon from Ben Wheeler, TX

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.

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2 of 2 people found this instruction helpful

Parts Used:
  • Defrost Thermostat
Level of Difficulty: Easy
Time to do repair: 30 - 60 mins
Tools: Screw drivers, Socket set
Customer: SCOTT from ELECTRIC CITY, WA

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!

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Model Cross Reference

This part works with the following models:

PartSelect Number: PS11743535
Manufacturer Part Number: WP67003426
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