Here is the deal. My A/C usually works fine, then out of the blue, the flow of air out of the vents will slow down to a light breeze, even thought the unit is on Max and the fan is on high. You can hear the fan running fast as it should on high max, but barely any air comes out of the vents.

Then after a period of time (1 to 2 hours) it will go back to running as normal.

This has been ongoing now for a couple years and I am now living in Arizona and so I need to fix it. Any suggestions!

Thanks,

 

Insure you are on recirc, and then try different positions for the dampers and insure they are redirecting the air flow. If not then consider a vacuum leak.

 

Seems like I found the problem. I added R134 and the problem went away.