When to do Routine Maint. for Central AC
I have a six year old conventional central a/c system. The first few years, I had it serviced in the spring, much like I have my oil-fired furnace serviced in the fall. For the past three years, I have not had the service done, but plan to do it again this year. I haven’t seen any change in performance.
What are your opinions on the required frequency for preventive maintenance on such systems? (The installer recommended every year, and of course, recommended that his co. do it…. I’m looking for more objective opinions!)