air conditioiner overheating on 2000 Kia Sportage

Even tho I have a full radiator and reservoir of antifreeze, my a/c still overheats after about 30 minutes of driving. What is causing it to overheat?

Asked by for the 2000 Kia Sportage
You may be interested in the following link. Kia as a car manufacturer have put all their workshop manuals on line for free to there owners.
I will send an article I wrote about cooling systems and overheating that may help help you. I'll send it to the email address you posted this question from.
Could i get a copy of this sent to me at Thanks as i am having same problem. Now i am also getting the code P0442 with check engine light on that is the code it is giving. Thank you.
May I please have this link sent to me as well? Having very similar issues. Thank you!!!
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Replacing the Centrifugal clutch fan cured this problem for me, old fan had too much freewheeling going on !!