The answer to 'how often to replace preventive maintenance' is that the frequency can vary depending on the type of HVAC system and the manufacturer's recommendations. Generally, most experts recommend having your HVAC system serviced and maintained annually, with some components replaced every 5-10 years.
Regular preventive maintenance is crucial for ensuring your HVAC system operates efficiently and has a long lifespan. This includes tasks like cleaning or replacing air filters, inspecting and cleaning coils, checking refrigerant levels, and testing electrical components. Neglecting maintenance can lead to decreased efficiency, higher energy bills, and even premature system failure.