False Flame Lockout Emergency

Ideal False Flame Lockout Fault Code

Also written as FALSEFLAMELOCKOUT — same fault.

The Ideal False Flame Lockout fault code means: your boiler has detected heat or a flame inside when it is supposed to be turned off, so it has safely shut itself down to prevent a fire or gas hazard.. It appears on 4 Ideal models in our database.

Act immediately

Turn off your boiler and stop using gas appliances. Call a Gas Safe engineer now. This fault can be dangerous if ignored.

Technical description: False Flame Lockout
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 False Flame Lockout fault code

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

Source

Ideal False Flame Lockout 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 7 July 2026