How much does it cost to fix Remeha error code Flame failure: lock out?

Typical repair cost for the Remeha Flame failure: lock out fault is £120-250 including labour.

Flame failure: lock out High

Remeha Flame failure: lock out Fault Code

Q: What does the Remeha Flame failure: lock out fault code mean?

Your boiler has stopped working because it cannot light the flame or keep it burning, requiring a professional to check the gas supply and internal safety sensors.

Also written as FLAMEFAILURELOCKOUT — same fault.

The Remeha Flame failure: lock out fault code means: your boiler has stopped working because it cannot light the flame or keep it burning, requiring a professional to check the gas supply and internal safety sensors.. It appears on 2 Remeha models in our database.

Technical description: In the event of a flame failure the boiler will lock out (on the gas pressure switch). Manual intervention is required to reset the boiler once the cause of the problem has been rectified.

Typical repair cost £120-250 (including labour)

Engineer required

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

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Remeha models that show the Flame failure: lock out fault code

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

Source

Remeha Flame failure: lock out fault code information on this page is sourced and cross-checked against the official Remeha service / installation manuals for each affected model.

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