How much does it cost to fix Biasi error code Lockout lamp (red) on?

Typical repair cost for the Biasi Lockout lamp (red) on fault is £120-£350 including labour.

Lockout lamp (red) on High

Biasi Lockout lamp (red) on Fault Code

Q: What does the Biasi Lockout lamp (red) on fault code mean?

Your boiler is trying to light but cannot successfully create or detect a flame, causing it to shut down for safety.

Also written as LOCKOUTLAMPREDON — same fault.

The Biasi Lockout lamp (red) on fault code means: your boiler is trying to light but cannot successfully create or detect a flame, causing it to shut down for safety.. It appears on 3 Biasi models in our database.

Technical description: The boiler starts the ignition cycle and remains in lockout. Possible causes: no gas, ignition/flame detection electrode failure, or gas valve failure.

Typical repair cost £120-£350 (including labour)

DIY fix possible

Check that your gas supply is turned on at the meterCheck if other gas appliances (like a hob) are workingPress the reset button to attempt a restart

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Biasi models that show the Lockout lamp (red) on fault code

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

Source

Biasi Lockout lamp (red) on 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 27 April 2026