The answer to 'how to maintain tune-up' is to perform regular HVAC system tune-ups and maintenance. This includes cleaning the unit, checking and replacing air filters, inspecting electrical components, and testing the system's performance. Tune-ups should be done annually, typically in the spring before the summer cooling season.
Proper maintenance helps extend the life of your HVAC system, improves energy efficiency, and ensures safe and reliable operation. It's best to have a professional HVAC technician perform the tune-up, as they have the expertise and tools to thoroughly inspect and service the entire system.