BoilerFaultCodesFirebird Burner control box lockout light lit Fault Code
Also written as BURNERCONTROLBOXLOCKOUTLIGHTLIT — same fault.
The Firebird Burner control box lockout light lit fault code means: your boiler's burner has shut itself down for safety because it failed to light or stay lit.. It appears on 1 Firebird model in our database.
Technical description: Burner lockout — fuel interruption (empty tank), electrical fault, burner/safety fault, failed component (e.g. photocell), worn/dirty nozzle, or incorrect flue
DIY fix possible
Check your oil tank level to ensure you haven't run out of fuel.Ensure the oil supply valve is fully open.Press the illuminated reset button on the burner once (do not press it more than twice).
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Firebird models that show the Burner control box lockout light lit fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Firebird Burner control box lockout light lit fault code information on this page is sourced and cross-checked against the official Firebird service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026