Hello and thanks for reading. I have a Kenmore upright freezer (#253.21741102) that was made in 2002 I believe. About a week ago I heard the temp alarm going off and found that it was no longer cooling. I hit the quick freeze button on the door and the compressor kicked in and it eventually got down to about -10 deg. I fiddled with it a little but could only get it to work in the quick freeze mode. I took everything out and unplugged it for a few days while I started researching a fix. After it thawed out what appeared to be about 2 cups of water came out from underneath. 3 days ago I plugged it back in to start trying to figure it out and to my surprise it seems to be working fine now?? So now I'm thinking it might have something to do with the defrost system. Any input or suggestions on what it could be or how to diagnose it would be greatly appreciated.