Burner on neon NOT illuminated High

Baxi Burner on neon NOT illuminated Fault Code

Also written as BURNERONNEONNOTILLUMINATED — same fault.

The Baxi Burner on neon NOT illuminated fault code means: your boiler is not firing up because it isn't receiving the necessary signal or fuel to start the heating process.. It appears on 1 Baxi model 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: Go to section 'F' - Potential issues with gas supply, gas valve voltage (70-140V DC), or PCB.
Typical repair cost £150-350 (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 Burner on neon NOT illuminated fault code

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

Source

Baxi Burner on neon NOT illuminated 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