4/18/25 Found the upstairs HVAC system to have a faulty compressor. 4/23/25 reclaimed the refrigerant from the system, replaced the compressor, filter drier, and the indoor thermal expansion valve. Pressure tested the system with 350 pounds of nitrogen, pulled the system down on a deep vacuum, recharged with a factory charge of 8 pounds r410a refrigerant, fired system off and monitored the pressures. The system is now working properly at this time. Billable