AC precision tune up. Clean and tune up AC; cleaned condenser coil, checked all outdoor electrical components, tested indoor air flow, checked refrigerant levels, and tested overall AC operation. Recommended filter replacement, air exchanger tune up, surge protector to prevent power surge and damage the electrical components and drain pan treatment to prevent biological growth and to keep the drain line clear. Homeowner would like installers to come out to adjust more air flow. Top floor is not getting cool enough.