How much does it cost to fix Baxi error code Red 'Flame Failure' neon lit?

Typical repair cost for the Baxi Red 'Flame Failure' neon lit fault is £120-250 including labour.

Red 'Flame Failure' neon lit High

Baxi Red 'Flame Failure' neon lit Fault Code

Q: What does the Baxi Red 'Flame Failure' neon lit fault code mean?

Your boiler has attempted to light the gas burner multiple times but has failed to detect a flame, causing it to shut down for safety reasons.

Also written as REDFLAMEFAILURENEONLIT — same fault.

The Baxi Red 'Flame Failure' neon lit fault code means: your boiler has attempted to light the gas burner multiple times but has failed to detect a flame, causing it to shut down for safety reasons.. It appears on 2 Baxi models in our database.

Technical description: Flame Failure

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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Baxi models that show the Red 'Flame Failure' neon lit fault code

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

Source

Baxi Red 'Flame Failure' neon lit fault code information on this page is sourced and cross-checked against the official Baxi service / installation manuals for each affected model.

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