Performed one system diagnostic for upstairs unit. Found unit not cooling. Outdoor unit low-voltage was disconnected by landscapers. Inspecting outdoor unit found failed capacitor, dirty, condenser coil, compressor draw high amps, refrigerant pressure is low, and contactor with high resistance. Upon inspecting the upstairs unit Found 80% furnace in a fully spray foam attic. Found improper, gas connections, no TE flow protection, dirty, blower wheel, no clearance for flu pipe through spray foam, no condensate drain clean out, also found duct wrap, falling apart in a exposing hard pipe. Due to cost of repairs in age of unit would recommend replacement of system instead of repairs. System is not operational at this time schedule in install supervisor to quote full system and upgrade to 90% furnace. Based on our findings today, it might be time to think about getting a brand new system.