Your S.T. Dupont lighter may not be lighting up due to several potential reasons. It could be related to a lack of fuel, faulty flint, air in the fuel tank, or a mechanical failure. Here’s how to troubleshoot each scenario:
Fuel: Your lighter might be out of butane gas. Refill the tank and try lighting it again.
Flint: The flint in your lighter may have worn out or become misaligned. Replace it if it’s worn or realign it carefully.
Air in the Fuel Tank: If you’ve recently refilled the lighter, there might be air trapped inside. Bleed the fuel tank to remove any trapped air.
Mechanical Failure: If the previous steps don’t work, there might be a mechanical issue. In this case, you might need professional repair or service.
If you need more detailed guidance, you can refer to some professional articles.