Did you ever have any luck on your problem ? I had a weird experience yesterday ......My a/c was blowing hard hot air from the middle vents but I was geting cool air from the side vents.... and rear when I close the middle vents it was managable but Im getting more hot than cold from the middle vents .....like the damper(the little wheel with the red and blue dots on it) for the heat isnt closing completely .......hmmm confused

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