A/C & Heat all going thru Defrosters

[sspanthony]

Recently had to replace my heater control because the indicator switch would not switch from panel, floor, mix, etc.... Every setting would cause the air to flow through the defroster at the top of the dash as a default.

I replaced the complete heater control unit and now it switches correctly as it should "BUT" everything is still coming thru the defroster ??? I checked for vacuum leaks but didn't see any apparent issues?

Anyone ever run into this ??