My freezer (on Kenmore side-by-side refrigerator model #106.44423601) keeps turning on and off. The freezer is cold, no problems there. But every few seconds, sometimes even 1 second, the freezer fan stops, I then almost immediately hear a faint beep and the fan noise starts again. So the freezer is basically running all the time. I think this may have started when I tried to fix another problem. The initial problem was that the drain from the freezer was clogged with something that had fallen in the freezer so I had to clean it up. Any ideas? Thanks in advance.