I'm working on a SCI-120A the owner said that it does not work and the water gets hot that is sprayed on the evaporator. I found that the fuse holder has a main power come into it and a wire(from the fuse) that goes to the fan which goes through a pressure switch. The wires were disconnected from the fuse, so I figured that when I put the new fuse holder in it would run. But all it did was the fan would come on for about 2 -5 seconds and shut off. Eventually it kicked out my circuit breaker(20amp). I also noticed that the compressor got pretty hot.