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

Typical repair cost for the Potterton Flashing Red LED fault is £120-250 including labour.

Flashing Red LED High

Potterton Flashing Red LED Fault Code

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

Your boiler has become too hot and has automatically switched itself off as a safety precaution to prevent damage.

Also written as FLASHINGREDLED — same fault.

The Potterton Flashing Red LED fault code means: your boiler has become too hot and has automatically switched itself off as a safety precaution to prevent damage.. It appears on 2 Potterton models in our database.

Technical description: Overheat condition occurs; overheat thermostat requires manual re-setting.

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 Flashing Red LED fault code

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

Source

Potterton Flashing Red LED 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