2020 main unit straight electric 4t. 2022 upstairs bryant hp. Homeowner uses home warranty for any issues found. Also has golf buddies he reaches out to for issues. Supply plenum on the main system is original and has black biological growth, ducts are leaking energy as well. Filter is not replaced regularly. Evaporator coil is getting dirty. 24mf blower capacitor is at the top of its tolerance. Homeowner is fully aware of the issues I've presented with photo evidence. Estimates made. Declined all work.