Complete: 2 Systems Worked on main floor unit: Payne Split HP: TN said unit wasn’t blowing much air. At HP Found unit 410a low side 37 and high side 280. Reversed flow of refrigerant and pressures went too 115 and 320. Did that a couple of times and the non-Adjustable TXV inside isn’t allowing refrigerant through. Needs new TXV.