A/C line freezing!!
Thread Starter
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Joined: Jun 2004
Posts: 83
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From: NC
A/C line freezing!!
I recently converted my R12 System to R134a and it seems to be cooling great. I have checked the vent temperatures with a thermometer and the coolest temperature I have gotten was around 44-45 degrees. I am confused though because the line coming from the evaporator to the accumulator is forming ice on it. Is this supposed to happen?
Thanks for any advice!
Thanks for any advice!
Le Mans Master
Joined: Dec 2000
Posts: 7,839
Likes: 22
From: San Diego, Ca
NO - cutoff pressure is too low or there is a restriction on the suction side. Set cutoff threshold to 22.5 psi by turning the screw between the terminals clockwise to increase it. If that doesn't fix it, it's restricted - did you replace the accumulator? Or you've mixed R134 with R12.
