How much does it cost to fix Biasi error code Lock-out signal lamp red?

Typical repair cost for the Biasi Lock-out signal lamp red fault is £150-300 including labour.

Lock-out signal lamp red High

Biasi Lock-out signal lamp red Fault Code

Q: What does the Biasi Lock-out signal lamp red fault code mean?

Your boiler is failing to light the flame despite several attempts, meaning it has safely shut itself down to prevent a gas buildup.

Also written as LOCKOUTSIGNALLAMPRED — same fault.

The Biasi Lock-out signal lamp red fault code means: your boiler is failing to light the flame despite several attempts, meaning it has safely shut itself down to prevent a gas buildup.. It appears on 5 Biasi models in our database.

Technical description: Boiler blocks again due to unsuccessful ignition cycle. Burner doesn't light after pressing the reset push-button.

Typical repair cost £150-300 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Biasi models that show the Lock-out signal lamp red fault code

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

Source

Biasi Lock-out signal lamp red fault code information on this page is sourced and cross-checked against the official Biasi service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026