I went to a call tonite, small cooler in restaurant, owner unplugged it, says evaporator section froze up. I hook my gauges up plug unit in compressor starts, pulls down to 3 psi over 98 psi, cap tube is colder than compressor suction line at compressor. All this tells me unit is low on refrigerant. This is an old Jordon cooler, problem is I can't find any data on it telling me what kind of refrigerant, I susspect R12, I could be wrong. When I took refrigerant pressure readings, cooler ambient was 68 degrees, I'm not even sure what the set point temp is suppose to be. Anyone ever seen an old Jordon cooler? please help. If the defrost control is bad, can I replace with after market, I dought I can find oem part. When I first plugged unit in compressor started no problem, then I unplugged it for a few minuets, and plugged it back in, compressor did not start, evap fan runs, so I think when you cycle the power it resets the defrost timer.
[Edited by flangehead on 05-16-2004 at 10:34 PM]