How much does it cost to fix Ariston error code Red B L.E.D.?

Typical repair cost for the Ariston Red B L.E.D. fault is £120-250 including labour.

Red B L.E.D. High

Ariston Red B L.E.D. Fault Code

Q: What does the Ariston Red B L.E.D. fault code mean?

Your boiler has stopped working because it failed to ignite the gas flame to heat your home or water.

Also written as REDBLED — same fault.

The Ariston Red B L.E.D. fault code means: your boiler has stopped working because it failed to ignite the gas flame to heat your home or water.. It appears on 1 Ariston model in our database.

Technical description: Shutdown due to the failure of the burner to light automatically

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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Ariston models that show the Red B L.E.D. fault code

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

Genus 27 Repair: £120-250

Source

Ariston Red B L.E.D. fault code information on this page is sourced and cross-checked against the official Ariston service / installation manuals for each affected model.

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