BoilerFaultCodesGlow-worm LED 2 Burner Lit Fault Code
Also written as LED2BURNERLIT — same fault.
The Glow-worm LED 2 Burner Lit fault code means: your boiler is operating normally and the central burner is currently ignited and heating your water.. It appears on 4 Glow-worm models in our database.
Technical description: Burner Lit
What causes the Glow-worm LED 2 Burner Lit fault?
This is not a fault, but a status indicator showing that the gas valve has opened and the main burner has successfully ignited. It confirms that the internal components have completed their safety checks and the unit is now actively generating heat for your radiators or hot water. If the light is on, your boiler is functioning exactly as it should be.
DIY fix possible
This fault may be fixable without an engineer. Check your manual first.
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Gas Safe Register →Glow-worm models that show the LED 2 Burner Lit fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Glow-worm LED 2 Burner Lit fault code information on this page is sourced and cross-checked against the official Glow-worm service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026