Complete 1 system a/c repair and preventative maintenance check. Left behind replacement filter . Added chlorine tablets to evaporator coil drain pan. Installed union on drain line and cleared line. Tested mechanical and electrical components. Found weak blower capacitor (10 uf). Found dirty blower wheel. Found rusty, corroded, and dirty evaporator coil. Found leak on right side of evaporator coil. Found bad capacitor. Found worn main electrical switch. Found bad compressor. Customer needs a new system. System is not cooling at this time.