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WR50X10073 Refrigerator Defrost Thermostat For Kenmore

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SKU: APNWR50X10073K    
Condition: New
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Replacement defrost thermostat used for some GE, Hotpoint, Kenmore, Whirlpool refrigerator models.

Directly Replaces: WR50X10073, WR50X10078, SL10073, 1170028, AH1015943, AP3884320, EA1015943, PD00028025, PS1015943.


  • Monitors the evaporator temperature and once the temp reaches a set point it activates warming to defrost the evaporator.
  • L64-41F: Open: 64 Degree, Close: 23 Degree, 41 Degree Diff. 
  • Includes (1) Defrost Thermostat with Tube Mount Clip and Wire Leads.


  • Color: Orange / Yellow / Gray.
  • Material: Metal / Plastic.
  • Thermostat Dimensions: 1-1/16"L x 1-1/16"W x 1-1/16"H.
  • Additional Dimensions: Orange lead extends 39" from thermostat. Yellow lead extends 15-3/4" from thermostat.

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WR50X10073 Refrigerator Defrost Thermostat For Kenmore

Repair Skill Level: 2 | Beginner to Moderate
Minimal disassembly (if any) and some basic tools may be needed.

Part Description: The defrost thermostat monitors the temperature of the evaporator coils and controls when the defrost heater runs during the defrost cycle.

Failure Symptoms: Excessive buildup of frost/ice on evaporator coils; Refrigerator is unable to maintain a constant temperature; Poor cooling performance in both fridge and freezer sections.

Testing: Unplug the unit and disconnect the defrost thermostat. Place the disconnected thermostat inside a working freezer. Once the thermostat has hit it's closing temperature, use a multimeter to test it for continuity. If the defrost heater does not have continuity, replace it.

Bonus Tip: Determine the closing temperature of your defrost thermostat by finding the temperature range on the side of the thermostat. You're looking for a set of letters and numbers that look something like L64-41F. Using this example, 64 degrees Fahrenheit is the opening temperature and 41 degrees Fahrenheit is the differential. To find the closing temperature you subtract the differential from the opening temperature. Therefore in this example 64-41= 23 degrees Fahrenheit closing temperature.

Disclaimer: Information and recommendations contained herein are believed to be accurate as of the date hereof. Since the conditions and methods of use of the information referred to are beyond control, and Thrifty Appliance Parts LLC, cannot be held liable for results obtained or arising from use or reliance on such information.
The User assumes responsibility associated with making test measurements, adjustments, parts replacements and any other action necessary to perform any recommended procedures. It is the responsibility of the User to ask for clarification if a recommendation is not fully understood, including the risks and hazards associated with the recommended procedures.