
Goot KX-40R soldering iron tip is not catching solder, what are my options?
The tip has gotten dark and it is not catching any solder. It does get hot and when I place the solder wire to it, it melts it but it won't stick. What can I do? My last option would be to replace the tip. But what else? Also, what causes this and how can I protect it from happening in the future?