BoilerFaultCodesTechnical description
Flashes to indicate ignition operation (stops after detection)
What causes this fault?
This indicator light means the boiler is currently sending a spark to the burner to start the heating process. It occurs every time the thermostat asks for heat, appearing as the sequence progresses from the fan starting to the gas valve opening. Once the boiler detects that a flame has been successfully established, the light will turn off.
DIY fix possible
No action is usually required as this is a status indicator rather than a fault.If the light flashes continuously without the boiler firing up, try turning the thermostat up.Check that your gas supply is turned on at the meter.
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