blower still blows at feet when put in head/foot or head mode
blower in head mode on 2005 Chevrolet Trailblazer
This may be a problem with the motor actuators, or the system that controls them. If you are not familiar with these systems, get a good repair manual and read up on them, or take it to a shop so they can diagnose this problem.
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Your diverter motor may be inoperative. It is a pain to remove. Sorry...