Complete 1 system furnace repair and preventative maintenance check. Changed filter. Dusted out electrical cabinets. Tested mechanical and electrical components, all in good shape. Recommend hard start kit to take a load off of compressor to improve efficiency and help the system last longer. Recommend platinum iaq UV light system to prevent mold growth and kill bacteria, germs, and viruses for improved air quality. Recommend surge protection to protect the system from power surges as every house goes through roughly 135 potentially damaging power surges a year. The system is heating normal at this time.