Fixing a Lighter
Most lighters can be counted on to fire up with incredible reliability. Occasionally, there are problems. Most of these problems are well-within the ability of the user to remedy. If not, they can always be taken to a service person. Some lighters have a lifetime guarantee and may simply be sent back to the company.
To troubleshoot the lighter, start by determining which of the following is true: there is spark and no flame; there is no spark and no flame. These simple questions will essentially dictate the solution to the problem.
If there is spark and no flame then one must check to make certain that there is fuel being delivered. On a torch lighter, one can hold the lighter close to their ear, without lighting it, of course, and hit the fuel release. There should be a distinctive sound of escaping fuel. Bleed out any air that may have become trapped in the reservoir by keeping the valve open for a few seconds and try lighting the device again. Most often, this will do the trick. If the jet is obstructed, gently tap the inverted lighter on a hard surface to knock the obstruction free. A toothpick or thin piece of wire may be used for stubborn obstructions.
If there is no spark at all, either the electronic ignition or flint wheel is obstructed or there is no flint left in the lighter. On a flint wheel model, remove the retaining spring and verify that there is flint. Be aware that the last few millimeters of flint sometimes become lodged against the flint wheel and prevent it from turning. Tap the lighter to dislodge it.
If the igniter is physically obstructed, the remedy will depend on whether it is a flint or electric mechanism which is at issue. With a flint mechanism, never force the wheel. One may turn it backwards a bit and forwards again to try to dislodge any debris. Also ensure that one actually is turning it against a flint and not against the spring that holds the flints in place. This happens more than one may think. On an electronic lighter, make certain that there is spark. If there is not and no obstruction can be seen, the lighter should be brought to a service person. These devices are delicate and require a qualified technician to replace them properly and safely.