The purpose of preventive maintenance is to keep your HVAC system up and running all season long with no surprise breakdowns, while operating at top efficiency. You rarely see your HVAC system face to face, so it’s easy to forget about it and neglect it. Imagine doing the same with your car. If you never have the oil changed or refuse to take your car in for any kind of tune-up until the check-engine light comes on, you can’t expect it to last more than a couple of years.
Your HVAC system is the same way. No matter how expensive the system is or what the manufacturer promises, a complicated piece of mechanical equipment is subject to breakdowns and needs repairs every so often. Reduce the incidence of repairs by keeping on top of annual maintenance.