well, i am currently trying to restore an old prestcold fridge, although my knowledge is limited i would guess that the refrigerant has probably leaked out, especially if you can get the compressor to run but not chill. you could check the motor and compressor are still connected (i have no idea of the drive system, maybe a belt has perrished and broken and the motor no longer runs the compressor) you could steal the working system from a modern fridge and crowbar them inside you own one..........ill have to check the model of mine but i am on the look out for a working thermostat, so if you cant get yours to work......??
gareth
February 2006