The answer to 'how to maintain maintenance' is to perform regular HVAC maintenance and inspections to keep your system running efficiently and prevent costly repairs. This includes tasks like cleaning or replacing air filters, inspecting and cleaning the condenser coils, lubricating moving parts, and checking refrigerant levels.
It's recommended to have a professional HVAC technician perform a full system tune-up and inspection at least once a year, typically in the spring or fall before the peak heating or cooling season. They can thoroughly inspect all components, identify any issues, and ensure your system is operating safely and at peak performance.