BoilerFaultCodesTechnical description
Flashes to indicate ignition operation (stops after detection).
What causes this fault?
This status occurs while the boiler is trying to create a flame to start the heating process. It is triggered when the control board sends power to the ignition system to spark the burner. If this light continues to flash without the boiler firing up, it usually means the fuel is not reaching the burner or the spark is not strong enough to light the gas.
This can be more frequent during the first cold snap of autumn, as gas valves or electrodes may struggle to operate correctly after being idle throughout the summer.
DIY fix possible
Monitor the light to ensure it stops flashing once the boiler fires upNo action is required as this is normal operational feedbackIf the light continues to flash without the boiler lighting, try resetting the boiler