Sarah invited us out today for 3 AC tune ups! While going through the systems I found just a couple things that need attention. Most importantly, I found that the main level blower housing was very dirty. This is putting some strain on the motor causing it to pull a little more power than necessary. Next I found that the upstairs unit has been working harder than it needs to. I recommended a hard start for the system to help it on initial start up. I left options for hard starts on each unit to help prevent future problems as well.