Baxi neon flashing (Section E) Fault Code
Also written as NEONFLASHINGSECTIONE — same fault.
The Baxi neon flashing (Section E) fault code means: your boiler is failing to light the fuel inside even though it is trying to start, so it has safely shut itself down to prevent a gas build-up.. It appears on 2 Baxi models in our database.
Technical description: Spark at ignition electrodes for up to 10 seconds - no ignition
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Gas Safe Register →Baxi models that show the neon flashing (Section E) fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Baxi neon flashing (Section E) 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