I called a repair company to find out what's going on with the freezer the Tech inspected and said that the defroster thermostat sensor was bad, he want me to charge $500 dollars to repair it which I found it too much since the refry was 10 years old, so went to appliance Parts.com and I investigate how much was that particular sensor my surprise it cost only $27 dollars but not only that there was a video that shows how to replace it; wonderful! I order it and I replaced it myself in 20 minutes and my freezer is working fine again. Thank you Appliance parts