Another heater blower problem-- this one on Cirrus '95

I see a recent question on a similar topic of intermittent heater
blower
problems on Chrysler.

My Cirrus '95 developed this problem this year. Mileage is
about 120k

I tested the heater early in the season during a cold snap and found
that the heater blower would not change the airflow from windshield
to feet on the control panel dial. I tried working it back and forth
but this did no good.

At my next oil chage and winter prep I took the problem to my
regular service outlet. They ran the handheld codes reader or
something
and could not find a problem: the heater airflow switch would
change the airflow normally. So I took the car and ran it. When
inquiring about a repair the shop said such a repair could be
affected by the 'core memory' or the control system and the repair
might be in the big bucks.

Now the problem has returned. The heater blower works at the
windshield and upper vents but will not switch the duct to
the driver's feet.

My thought on this was: could running the codes from the dashboard
tweak the electronics back into action?

Dodge Shadow, that was possible, but I cannot recall if it can
be done by the owner on a Cirrus.


Please provide any solutions that are in play for this problem. Is it
a switch, or sensor or that core electronics problem? Here in
Wisconsin we need our heaters. ;-)