How much does it cost to fix Firebird error code L2?

Typical repair cost for the Firebird L2 fault is £120-280 including labour.

L2 High

Firebird L2 Fault Code

Q: What does the Firebird L2 fault code mean?

Your boiler has stopped running because it has locked itself out, usually because it can't draw enough oil or light the flame.

The Firebird L2 fault code means: your boiler has stopped running because it has locked itself out, usually because it can't draw enough oil or light the flame.. It appears on 1 Firebird model in our database.

Technical description: remote lockout lamp

Typical repair cost £120-280 (including labour)

DIY fix possible

Check that you have enough oil in your storage tankEnsure the oil supply valve is fully openPress the illuminated reset button on the burner once

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Firebird models that show the L2 fault code

Click a model for the full fault code list and model-specific repair notes.

Envirogreen Repair: £120-280

Source

Firebird L2 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 27 April 2026