The answer to 'when to service AC' is that you should have your air conditioning system serviced at least once a year, typically in the spring before the hot summer months. Regular maintenance is essential to ensure your AC unit is running efficiently, extending its lifespan, and preventing costly breakdowns.
During a tune-up, an HVAC technician will clean the unit, check refrigerant levels, inspect the electrical components, and identify any potential issues before they become major problems. They may also recommend replacing air filters, lubricating moving parts, and clearing debris around the outdoor unit.