Perform 1 system diagnostic on main level unit. Found unit 19 years old R22, with over charged system, dirty condenser coil, dirty blower, rusted evap coil, over amping blower motor , and failed run capacitor. Units did not have Te standard flood protection. Due to cost of repairs customer would like estimate for replacement for main system. Upstairs unit is the same age and original to home. Unit is operational at this time however is not efficient. Based on our findings today, it might be time to think about getting a brand new system.