On Thursday, October 11, 2018 at 9:35:28 AM UTC-4, Percival P. Cassidy One of
those thermal fuses is bad, but with no way of spot-welding a
replacement in place is there any practical way of fixing it?


https://i.etsystatic.com/13173278/r/...97417_dgpn.jpg

Then, eutectic silver solder.

https://www.amazon.com/Cardas-Solder.../dp/B015X68HXW

Safe, effective, and will withstand the heat.

Use the squig (soldering ring) to join the ends and then crimp it. Solder with silver solder. Done.

I keep both for just these sorts of repairs, and also my wife's jewelry.

Peter Wieck
Melrose Park, PA