If you experience intermittent cooling on a 1997 -1999 Chevrolet Malibu coupled with a blinking recirculation button after approximately forty-five minutes of operation, your problem may lie in the control head.   

Ignacio Corella has been kind enough to create a detailed article which explains the repair procedure.   The article has been made available to us by  Cool Profit$ Magazine.  It's loaded with plenty of photos and detailed instructions to make the repair.    

 This article (in .PDF format) can be downloaded from the attachment area at the bottom of this page.