BoilerFaultCodesTechnical description
Flashes to indicate ignition operation (stops after detection.)
What causes this fault?
This light activates because the boiler's control box has sent a signal to create a spark and open the gas valve. It is a natural part of the start-up sequence and simply shows the system is working to establish a flame. Once the internal sensors detect that the burner is safely lit, the light will turn off automatically.
DIY fix possible
Check if the light stops flashing once the boiler has fired upEnsure your gas supply is turned on if the boiler fails to lightMonitor the boiler to ensure it transitions to a steady light or turns off correctly after heating
Find a Gas Safe engineer
Search the official register →