At 07:05 PM 2/7/2013, Lisa Bloch wrote:
>It sounds as though air is coming from outside BECAUSE I have the
>third lever pushed all the way to the left, even though there is no
>fan on.  Easy enough to test/fix.  How would I know if the problem
>is, instead, deteriorating control flaps?  And, should I care?

Push the lever to the right.  If the air stops your flap seals are
working reasonably.  If you still get noticeable flow then they're on
the way out.  As a general principle, if they haven't been repaired
already then they're undoubtedly on their last legs or close to it.

And in case you hadn't noticed, the dashboard vents can be shut off
as well, by pushing the knurled knob on the side up or down firmly.

Yours,
d