I have an older Kenmore upright freezer, frost free, that when the unit has run for a few days , say 4-5 the coils in the insdie lower rear freeze up and shut the unit down. I was told to turn a knob located near the front bottom until click sound occured, then wait for 10-15 minutes to see is it gets warm near the bottom of the unit. I did so and there was no heat radiating from the unit. I forgot what the tech told me that it meant, I think he said it was the bimetal defrost that needed to be replaced. Or it could be the defrost timer. I just cant remember. I would appreciate it if you could enlighten me.
Thanks,
Vickie
The tech was telling you to put it in defrost and if ater the time you didn't hear the click the defrost timer is defective but like you are describing the defrost thermostat (bimetal) could be bad. here's a simple test (if your handy with a screwdriver) just dissasemble the panel and you will see the coil and defrost heater. if your handy with a voltmeter (please disconnect power first!) locate the two wires to the defrost element put the meter in "audible" mode and check for continuity on the defrost heater if you hear a beep it's good if it dosen't beep it's bad just replace heater w/ bimetal and your ready 2 go! email me @ hvac.tech7872pr@gmail if you have any questions
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