Technician Ricardo diagnosed upstairs system found evaporator coil leaking out three to four pounds of refrigerant also found two week capacitors one for the Flor one for the outdoor unit the 20 X 25 x1 filter was dirty needed to be replaced and outdoor condenser coils need to be water washed every 30 to 60 days recommend replacing equipment due to age and r22 equipment/ refrigerant becoming more and more expensive especially if you plan on staying in the house for the next 10 years