How much does it cost to fix Potterton error code neon flashing (Section I)?

Typical repair cost for the Potterton neon flashing (Section I) fault is £150-350 including labour.

neon flashing (Section I) High

Potterton neon flashing (Section I) Fault Code

Q: What does the Potterton neon flashing (Section I) fault code mean?

Your boiler is attempting to light the flame, but it is going out almost immediately, which means it cannot provide heat or hot water.

Also written as NEONFLASHINGSECTIONI — same fault.

The Potterton neon flashing (Section I) fault code means: your boiler is attempting to light the flame, but it is going out almost immediately, which means it cannot provide heat or hot water.. It appears on 2 Potterton models in our database.

Technical description: Flame failure - Burner extinguishes after 10 seconds

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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Potterton models that show the neon flashing (Section I) fault code

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

Source

Potterton neon flashing (Section I) fault code information on this page is sourced and cross-checked against the official Potterton service / installation manuals for each affected model.

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