I just brought a 93 park ave ultra, my problems that I can not get the heat to come out of he dash vents....when I turn the heat on it comes out of the floor vent and the deforst vent...Now if I turn the a/c on air will does come out of the dash vents......

Unfortunately, that was the way the system was designed. :uhoh: The only way heat will come out of the top vent is, if the cabin temperature has stabilized to the set point and the sun sensor sees bright sunshine.:screwy:
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