This defrost heater part number W11175809) is for refrigeration appliances.
The defrost heater melts frost from the evaporator fins during the automatic defrost cycle.
Safely store any food that could deteriorate while the power is off and unplug the appliance before installing this part. Wear work gloves to protect your hands.
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September 2, 2019
Is there a way to test the defrost heater to see if it is working or not? Coils keep freezing over. Thank you
For model number EV170NYLQ00
Hello Sue, Thank you for the question.You can test the heater with a multi meter. It should read closed. Hope this helps!
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October 26, 2021
My freezer was freezing up, so I purchased the new Defrost heater for my freezer after noticing a black spot on one end of the heater, and installed it. It was an easy install. Now, it's freezing up again even with the new heater installed. Should I maybe replace the thermostat that fits my model also? Is there another part besides the thermostat that goes with the Heater I should also purchase?
For model number EV187NYRV00
Hello Gregory, Thank you for the question. We suggest testing 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. We hope this helps!