I have never paid anyone to "service" my HVAC system. I change my filters every six months, pour a gallon of hot water down the condensate drain about every three months, and make sure the outside condenser unit coils are clean. I think that most HVAC companies make most of their money on annual or bi-annual maintenence visits. However, I don't know of anything a technician can do that will prevent a failure or extend the life of the system. Note that many system failures are caused by a defective capacitor, but I don't know of any HVAC company who ever replaces the capacitor as a preventative maintenance measure.
Some people actually think that paying a company for regular maintenance will make them a priority customer when they need a repair, but I don't think this is true at all. Also, I have never seen a maintenance contract that guarantees any priority service to customers who have regular maintenance performed. I once asked Munn's if they provide any written agreement regarding their so-called priority list, and their response was that it is only a verbal promise.
Last edited by retiredguy123; 06-07-2025 at 08:32 AM.
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