Performed preventative maintenance on Heat Pump System. Changed out filter for customer. Inspected the blower assembly, blower motor, electrical components, heating elements, wiring, and overall condition of air handler. Cycled emergency heat and checked operation of heating elements, amps and temperatures. Cycled heat pump and checked amps, temperatures and pressures of condenser. System is operating properly within manufactured specifications at this time. Customer is not interested in ordering filters or UV bulb replacements at this time. Went over duct cleaning estimate as well. Overall system is still in good shape.