The defrost thermostat a bi metallic switch controls the temperature rise in the freezer compartment during the defrost cycle.
Defrost temperature sensor test.
A thermistor changes resistance based on the temperature it is exposed to.
You can purchase one from amazon by clicking this link.
If your defrost heater has a defrost thermostat wired in series like mine you ll need to make sure the thermostat has cooled down below its closing temperature before doing the ohm test.
Learn how to test the thermistor to see if it s working.
There is a lot of misinformation on testing the defrost thermostat.
In order to test you can measure the ambient temperature make the sensor is removed and acclimated measure the ohms of resistance and compare to the manufacturer chart.
Step by step instructions on how to test temperature sensor in a samsung refrigerator.
This video from sears partsdirect shows how to troubleshoot problems with your refrigerator s thermistor or temperature sensor if your refrigerator is not cooling at the right temperature.
Once the temperature reaches a preset level the defrost thermostat.
Also see how to check the wires that connect the thermistor to the electronic control board to make sure the problem isn t with the wiring or the.
A defrost sensor is generally a thermistor.