The answer to 'how often to replace maintenance' is that the frequency of HVAC maintenance will depend on several factors, including the age and condition of your system, how often it's used, and the environment it operates in. As a general rule, most HVAC experts recommend getting your system serviced at least once a year, typically in the spring or fall before the peak heating or cooling season. This helps ensure your system is running efficiently and can identify any potential issues before they become major problems.
Regular maintenance typically includes things like cleaning or replacing air filters, checking refrigerant levels, inspecting electrical components, and cleaning the condenser coils. Doing this annual maintenance can help extend the life of your HVAC system and prevent costly breakdowns. However, if you notice any unusual noises, strange smells, or a drop in performance, it's a good idea to have a professional technician take a look, even if it's not your regularly scheduled maintenance.