Chris for Model Number 106.72132101 (kenmore coldspot) My freezer is building up ice on the back of the freezer....so i took everthing out let it defrost and cleaned out the drain tube and took an air compressor to the bottom of the frige....i belive it is the auto defrost but i dont know how to get to it to see if is working and is there a visual that would be a type of give away that it is bad or could it be another problem
Answer Chris, A visual inspection won't work, You will need to test the defrost thermostat WP4387503 and heater WP2315530 for an "open"(no resistance) circuit or a "closed"(continuity) circuit with a multimeter. To access the heater and thermostat, you will need to remove the back wall of the freezer compartment, carefully disconnect the wire harnesses, and of course, you need to unplug the power cord first. The defrost thermostat has to be in an ice water bath in order for it to be a closed circuit. If the components test proper with a meter, you pretty much have it isolated to a bad defrost control/timer W10822278 located in the control panel assembly in the ceiling of the fridge compartment. Thanks and Good Luck Read More... Answered by AppliancePartsPros.com | Tuesday, November 15, 2011