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

Typical repair cost for the Potterton neon flashing (Section E) fault is £120-250 including labour.

neon flashing (Section E) High

Potterton neon flashing (Section E) Fault Code

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

Your boiler has detected an issue with the airflow system, which means it cannot safely clear waste gases and has therefore shut itself down to prevent a hazard.

Also written as NEONFLASHINGSECTIONE — same fault.

The Potterton neon flashing (Section E) fault code means: your boiler has detected an issue with the airflow system, which means it cannot safely clear waste gases and has therefore shut itself down to prevent a hazard.. It appears on 3 Potterton models in our database.

Technical description: Air pressure switch proved - Check electrical and pressure tube connections, blockage of pressure tubes, restriction in flue or venturi.

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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Potterton 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

Potterton neon flashing (Section E) 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