I had a system recently with it and tech support did a warranty claim on the unit. This unit (frigidaire) had no safetys insalled. The unit was ran who knows how long with a leak in one of the feeder tubes off the dist. on the outside coil in heating. My question is moisture in the system will eventually cause a burnout, right?? This system was full of the green slime on the screens in front of the pistons/distributors. Why would a system generate green slime in one instance and in another generate acid creating a burnout situation??? In another thread i read someone say they do changeouts from bad installs with green slime. Is it the amount of moisture or the time the moisture is in the system? Do you know were i'm coming from here. it is friday night now. Why would moisture in a system in one instance cause slime and in another cause a burnout??