Thank you very much Sir. I've been going through my system, and this seems to be it possibly. Mines is blowing cold air on the second floor and baseboard working well on the first floor. Second floor lever won't move at all and is getting 24volts.
I graduated from hvac school a year ago but currently working as maintenance i changed two taco heads this video helped me with wiring i was always confused on which wires goes where
In my jurisdiction, one of the strictest in the country, you need a license for new construction including remodeling. Repairs don’t require a license.