How much does it cost to fix Potterton error code Red LED: Rapid Flashing?

Typical repair cost for the Potterton Red LED: Rapid Flashing fault is £120-220 including labour.

Red LED: Rapid Flashing High

Potterton Red LED: Rapid Flashing Fault Code

Q: What does the Potterton Red LED: Rapid Flashing fault code mean?

Your boiler has failed to start up because it is struggling to detect a flame, likely due to air being trapped in the gas supply or a minor mechanical hiccup.

Also written as REDLEDRAPIDFLASHING — same fault.

The Potterton Red LED: Rapid Flashing fault code means: your boiler has failed to start up because it is struggling to detect a flame, likely due to air being trapped in the gas supply or a minor mechanical hiccup.. It appears on 4 Potterton models in our database.

Technical description: Lockout (Boiler does not light within 3 attempts due to air in the system)

Typical repair cost £120-220 (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 Red LED: Rapid Flashing fault code

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

Source

Potterton Red LED: Rapid Flashing 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