2011 CX-9 Dual Climate Issue

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2006 Mazdaspeed6
The AC stopped blowing cold on the driver side while continuing to blow cold on the passenger side.
It's this way whether the car is in dual climate mode or not.
I'm suspecting there's a right-left blend actuator somewhere but I'm not able to find any useful information or photos/diagrams online.
I've looked underneath the dash area on both passenger and driver side and see several actuators associated with the AC ducts but have no idea which is which.
I've tried manually setting different AC options to see if I can figure out what's what but I cannot.
So, can anyone tell me where the left-right blend actuator is located?
Any suggestions on where to investigate if not the blend actuator as I suspect?
I'd appreciate any help I can get on the subject. Summer's coming here in Florida and I need to get this fixed!
Thanks
 
when that hapenned to me it was because the pressure in the AC system was too low (very slow leak) No clue how that relates but once they filled the system if started working again
 
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