Boiler not firing up? Your boiler won’t light at all, or it may be firing up only for hot water. You may not be able to see a pilot light or you can hear a sparking noise but the flame is not igniting inside the boiler. Sometimes ignition problems develop over time when the boiler keeps cutting out or turning off when the boiler attempts to fire up, other times unexpectedly the boiler seems dead and won’t fire up at all. Regardless of the make (Worcester, Vaillant, Glow Worm, Baxi etc.) or type (Combi, System, Central Heating) we can find the boiler fault that means your heating is not working and get your boiler working again.