Reason: This is not uncommon and in 99% of cases internationally it is caused by the fuel. The pressurized fuel has a component of wax in it for reasons known only to the suppliers. The wax settles at the top of the bottle and consequently it is the first thing that comes out through the hose instantly blocking the fine apertures in the docking iron inlet and jet. This is only usually an issue when a fresh bottle is connected to your iron and I always tell customers to use a new bottle on the barbeque first so the wax can get out through the bigger holes. If you are working to unblock your iron, be sure that you have gotten rid of any waxy gas via your barbeque before re-connecting the bottle to your iron. Fix: If the burner-tube is removed the brass handle piece can be boiled up for a few minutes in a pot of water. Leave the hose connected at both ends during this process. When you are satisfied that the assembly is hot enough for the wax to have melted remove from the pot and crank open the tap on the gas bottle to blow the melted wax out. Another issue which can have similar effect is small particles of dirt or grit being inside the gas bottle tap outlet when the hose is being connected. Anything in the pipeline is blown straight into the iron when the tap is opened. You can check this by unscrewing the hose-fitting where it enters the iron. You may find minute particles in the opening, which can swirl around upsetting the flow or completely block  the tiny aperture. In the unliky event that your iron is still not holding a flame, please contact us for support.