A Carrier / Trane thread here:
http://ths.gardenweb.com/forums/load/hvac/msg071506325619.html?1
Lots of good Trane and Carriet threads here:
http://ths.gardenweb.com/forums/hvac/
In fact, GardenWeb has lots of good repair and home issue forums.
What a site!! I will take me days to go through the pages posted. But, good information on lots of issues....sure can get confusing.
But, a BIG THANK YOU!