I have a Trane CVHA 032 that I have been sevicing for about 15 years and recently it has developed a chatter with the K27 starter upon startup. I have checked all relater wiring, changed all relays related to it pulling in,rebuilt the stater,as well as replacing the starter. It will only chatter on the initial startup, and if it is started more than once in a short period of time it will not chatter at all. Anyone ever have this issue??