I read around a few threads on a search but found nothing similar to what I am experiencing...

When using Auto Climate or manual for heat I am getting warm air out of the footwell vents & a strong stream of freezing cold air out of all 4 front dash vents & also out of the top defrost vent. When I try to manually set the airflow to footwell vents only this does nothing & the streams of cold air continue to come out of all the upper vents.

All the A/C problems I have read about on NAM sound like they have mega complicated &/or expensive fixes. Just wondering if anyone had experienced anything like what I am & if perhaps there is an easier fix