WELLER SOLDERING GUN. Carl E. Weller takes out the The parts of the Weller heating element Energy effective: automatic stand-by mode for tools. Are you searching for an operating instruction? You can find operating instructions for our products directly on the respective product detail page. ManualsLib has more than 205 Weller Soldering Gun manuals. Click on an alphabet below to see the full list of models starting with that letter:.