Came out to perform preventative maintenance on AC system. Discussed with customer about maintenance being provided today, filters, and any issues regarding the system. Customer stated that the system seems to be doing fine, but also informed me that she is a little bit on a time crunch and needed to leave at a certain time. I supplied customer filters that she said she would change. I inspected the equipment in attic. Started with the blower assembly, motor, capacitor and electrical connections, then checked the evaporator coil and drain. Blower motor has a slight oil residue around it, most likely due to age and stress on the motor. Made homeowner aware of the potential issue with the motor, but as of right now, it is operating within proper amp ranges. Washed condenser coil. Inspected the compressor, fan motor, capacitors, contactor, hard start kit and overall condition of AC. Checked thermostat operation, wiring, amps, temperature and pressures. System is still cooling properly wit