Back to square one. Today my AC guy came and pronounced the compressor dead, so I've ordered a new 3 ton condenser and evaporator coil (Goodman R-410A). He said he would come and start it up once I've got it installed. I've already demo'ed the old stuff. Re-installation seems reasonably straight forward. I have ordered some of the solderless bonding agent, but I will probably do some testing first to see how well it works. Anyone have any experience with it? I've done a lot of different things, but this will be a first.