The answer to 'how to fix tune-up' is that a tune-up is a routine maintenance service for your HVAC system that helps ensure it runs efficiently and effectively. This typically includes cleaning the system, checking and replacing air filters, inspecting components, and making any necessary adjustments or minor repairs.
Performing a tune-up on your HVAC system every 6-12 months is recommended to keep it in good working order. This can help extend the life of your equipment, improve indoor air quality, and reduce energy costs. While some basic tune-up tasks can be done by homeowners, it's best to have a professional HVAC technician perform a comprehensive tune-up to ensure everything is working properly and safely.