How much does it cost to fix Ideal error code BURNER LOCK OUT?

Typical repair cost for the Ideal BURNER LOCK OUT fault is £150-300 including labour.

BURNER LOCK OUT High

Ideal BURNER LOCK OUT Fault Code

Q: What does the Ideal BURNER LOCK OUT fault code mean?

Your boiler has stopped working because it failed to light the flame, so it has purposefully shut itself down for safety.

Also written as BURNERLOCKOUT — same fault.

The Ideal BURNER LOCK OUT fault code means: your boiler has stopped working because it failed to light the flame, so it has purposefully shut itself down for safety.. It appears on 2 Ideal models in our database.

Technical description: Combustion lockout. Check gas, spark, HT leads, electrode positions, wiring to generator, or replace generator.

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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Ideal models that show the BURNER LOCK OUT fault code

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

Source

Ideal BURNER LOCK OUT fault code information on this page is sourced and cross-checked against the official Ideal service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026