How much does it cost to fix Firebird error code Lock-out lamp?

Typical repair cost for the Firebird Lock-out lamp fault is £100-250 including labour.

Lock-out lamp High

Firebird Lock-out lamp Fault Code

Q: What does the Firebird Lock-out lamp fault code mean?

Your boiler has shut down to protect itself and needs to be manually restarted because the burner has failed to light.

Also written as LOCKOUTLAMP — same fault.

The Firebird Lock-out lamp fault code means: your boiler has shut down to protect itself and needs to be manually restarted because the burner has failed to light.. It appears on 1 Firebird model in our database.

Technical description: Indicates burner lock-out; located on the reset button. Requires manual reset after 20 seconds.

Typical repair cost £100-250 (including labour)

DIY fix possible

Wait for at least 60 seconds after the boiler has stopped.Locate the red reset button on the burner control box.Press the reset button once to attempt a restart.Check that you have sufficient heating oil in your tank.

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Firebird models that show the Lock-out lamp fault code

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

Popular Heatpac Repair: £100-250

Source

Firebird Lock-out lamp 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