I have a Gibson chest freezer that I got from a friend about two years ago. It worked flawlessly for about a year and then stopped working about mid fall. It sounds like the compressor is working, but nomatter how long I let it sit, it won't actually get any colder than the temperature of the basement. I am wondering now if it might need a coolant recharge. I am also unsure as to the age of the freezer, though I'm pretty sure that it is more than 10 years old. Any help figuring this out would be greatly appreciated.

Jeremy