BoilerFaultCodesYour boiler is working correctly and is simply indicating that the internal burner is lit and ready to provide heating or hot water.
This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.
Technical description: Indicates that the pilot valve is held open, the thermoelectric valve and spark unit are de-energised, and the system is operating or ready.
What causes this fault?
This indicator light means that your boiler has successfully sparked and established a flame to heat your water. It shows that the internal gas valve is open and the system is functioning exactly as it should be. There is no fault present, and the light is simply confirming that the burner is currently active.
DIY fix possible
This fault may be fixable without an engineer. Check your manual first.
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
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