I always replace my start capacitors ever 2 years on a heat pump, and 4 years on residential AC. I use election years, when the commercials get really bad I need something else to do. You can not overlook it.. That is also when I change my brake, radiator, transmission and differential fluids. Trust me it is WAY more relaxing to be dealing with frozen brake bleeders. This year doing struts and strut bearings. Whoo hoo.
Rod
Rod