Possible solutions: Check lower fan to see if it is running. If it is not running the thermostat could be turned off or bad. The thermostat on Dixie Narco is usually located below motor cover in the right hand side of machine, below the can chute on the right wall of the cabinet. Vendo machines have the thermostat located towards the rear wall of the cabinet below the can chute on the left hand side of the machine, right in front of the evaporator fins. All of the way counterclockwise turns refrigeration off. The farther you turn to the right the colder the machine gets. Be careful not to turn too cold or cans will freeze. Remember diet drinks freeze at a higher temperature than regular drinks. Most machines have an electrical plug from the refrigeration unit plugged into a black box on the lower left hand side of the machine. Unplug this plug and plug it into a heavy-duty extension cord. If the compressor unit comes on (along with lower fan) then that basically proves that the thermostat has probably gone bad.