HAVE HAD THIS FREEZER FOR 6 YEARS. IT IS OLD AND WORKS PERFECTLY. BUT HAVING DEFROSTED IT. i'M NERVOUS ABOUT STOCKING IT UP WITHOUT KNOWING HOW IT WORKS. NO MANUAL. INSIDE ITS AN "EMPTY BOX" NO LIGHT, NO OBVIOUS THERMOSTAT NO NOTHING. THREE BUTTONS ON OUTSIDE GREEN (DOESNT LIGHT UP) RED, AND AMBER THE LAST BUTTON MOVES. THIS I HAVE DEDUCED IS POSSIBLY A FAST FREEZE..ON THE BACK IS ITALIAN WRITING WHICH ISNT VERY CLEAR. I GUESS IT COULD BE WELL OVER 20 YEARS OLD.