HVAC - 300TD airflow issues - need help
 

1983 300TD

AC is working but cannot get cool air to flow from vents. Air is blowing, but it is hot air. Checked freon and it is full. Compressor is working.

Thanks!

Did this system work good last week and now doesn't? Have you had this problem for a long time? Did you just do some other repair and now the climate control is acting up? I would check the mono valve for having power to it. No power supplied, I believe it remains open allowing coolant to flow into the dash. Report back