May be getting into semantics here but I'll take the heat. ;^) When I said I'd "resolder" the connections, which I've done countless times in my career and with various old stuff projects, what I should have said was "sweat."

Sweating a solder joint is to heat to molten, then let cool. Re-flow describes it too.

To resolder could imply actually removing the existing solder with either a vacuum pump or Solder-Wik, then applying new solder. This I do when I find a cracked pad or trace that needs repair or jumpering.

It's all a judgement call based on experience, but the result is the same. A repaired electrical connection, whether on a board, in a relay or wherever.

The types that is almost impossible to repair are multi-layer boards with traces sandwiched inside the laminated circuit board. Pull out a feed through hole by not heating it sufficiently, or over-heating it, and you've got a challenge on your hands if you don't know where the trace surfaces or makes contact with another pad.

Thanks guys. Wife should have AC by Sunday.

Erwin