Need some AC help
Thread Starter
Driver School Candidate
Joined: Oct 2013
Posts: 19
Likes: 0
From: fl
Need some AC help
Hey all, the 1993 sc 400 I bought has an ac gremlin
the ac light blinks, and thus shuts compressor off. I tried recharging the system, but it is full of refrigerant. I know the sc's have on board diagnostics on the display, at first I could not use this option, because my lcd screen was black, I fixed the lcd.. There are 0 codes now that I can read the display & I really don't know where to look. Now, if I keep pressing the ac button to keep the compressor on, the ac is cold from the vents, but compressor will not stay on by itself...
Help if you can& Thanks
Stan
the ac light blinks, and thus shuts compressor off. I tried recharging the system, but it is full of refrigerant. I know the sc's have on board diagnostics on the display, at first I could not use this option, because my lcd screen was black, I fixed the lcd.. There are 0 codes now that I can read the display & I really don't know where to look. Now, if I keep pressing the ac button to keep the compressor on, the ac is cold from the vents, but compressor will not stay on by itself...Help if you can& Thanks
Stan
Rookie
Joined: Jan 2013
Posts: 65
Likes: 0
From: TN
Had the same problem
I went through the whole system, and couldn't find the fault. I had a friend who is in the HVAC business come by and he read the pressures on the gauges, and told me I need a new A/C compressor. He told me I better do it fast, because if the compressor ****s the bed, it will blow all sorts of crap into my system. I bought a used compressor for $60.00, and flushed the whole system with denatured alcohol. I poured the new oil into the new accumulator, installed it, and then installed the used compressor. Don't forget to install new o-rings. I pulled vacuum on it overnight, and charged it in the morning, and now I get 40F air out of the vents. everything works great. 
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