[200q20v] Vent Problem

[Jeff.Bernstein at pneumaticscale.com]

I am experiencing a problem with my air conditioning vent controls.  When I
get on the boost, the air coming out of the air conditioning vents switches
up to the defrost vents.  It seems to be working correctly today but I am
interested to know your thoughts as to why this happened on acceleration
yesterday.

Thanks,
Jeff Bernstein
Canton, OH