In case your torch’s tip is not lighting, this could be a result of the buildup of melted metals, debris, and flux solder. You need to clean the tip to ensure that the flame can be produced to the right extension from the nozzle.
The first step in cleaning the tip is getting a three-quarters full pot with water. Put the pot on the stove to boil the water. Next, turn the tip off the propane torch by unscrewing it in a counter-clockwise direction.
Next, place the nozzle tip into the pot with boiling water. Boil the tip for at least 10 minutes. If it does not boil over, you can reduce the heat a bit. Put off the burner and remove the tip from the pot. Place the detail on a dry cloth to let it cool.
Once dried, shake the tip firmly in a downward motion to remove any water left in the nozzle. Finally, let the tip dry off entirely for a day to make sure all the moisture is dried out.