Flame Failure Neon High

Baxi Flame Failure Neon Fault Code

Also written as FLAMEFAILURENEON — same fault.

The Baxi Flame Failure Neon fault code means: your boiler is trying to start but the flame is not catching, meaning you currently have no heating or hot water.. It appears on 2 Baxi models in our database.

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description: Indicates that the burner has failed to light
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 Flame Failure Neon fault code

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

Source

Baxi Flame Failure Neon 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