Home inspection on three systems. Replaced filters, cleared drain lines and inspected system in heating and cooling. . Upstairs system (2011) System is very low on Freon (410a) , dual capacitor is reading below tolerance (29 on a 35 microfarad), blower wheel dirty, biological growth in evaporator coil drain pan and there is a crack in the heat exchanger. . Main level system (2017) Dirty blower wheel, cracked heat exchanger . Basement system (1999) Heat works on heat strip only. Outside heat pump is not working due to be flat on Freon (r22). Also, no drain pan under the air handler. . Due to the age and conditions of the systems, the best option would be to upgrade the upstairs and basement systems, and main level furnace (cracked heat exchanger). Also, install an APCO-x uv light to the systems, to give better air quality and to prevent create biological growth and mold inside the systems. . Set a lead to quote upgrading for the upstairs and basement systems, and min level furnace, as w