Whew, overcharged my A/C system. - Saab 9000 Bulletin Board - Saabnet.com
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Whew, overcharged my A/C system.
Posted by Tee (more from Tee) on Mon, 27 Aug 2001 12:37:12
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What a dumb thing to do. This weekend while charging the A/C of another vehicle, I decided to add the remainder of a can of R134a to the A/C system in my 93 Aero, because all systems leak a little over the years, right?. It seemed fine at first, but after driving a bit, it stopped cooling. I later discovered that after initial cooling, the compressor would immediately cycle off just a second after it cycled on due to safety cutouts in the system. Because of this, the compressor wasn't allowed to run long enough to continue cooling the evaporator. Didn't take very long to discover the problem. I just let out a little of the R134a from the low pressure service port until it was about 30 psi. Dumb to overfill then release some, but now it works perfectly, right at 47-48 degrees at the vents in 85-87 degree weather.
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