How much does it cost to fix Ariston error code Red LED I?

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

Red LED I High

Ariston Red LED I Fault Code

Q: What does the Ariston Red LED I fault code mean?

Your boiler has stopped working because it failed to light the flame needed to heat the water.

Also written as REDLEDI — same fault.

The Ariston Red LED I fault code means: your boiler has stopped working because it failed to light the flame needed to heat the water.. It appears on 1 Ariston model in our database.

Technical description: Shutdown Due To Ignition Failure: In the event that the automatic ignition of the burner has failed

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 LED I fault code

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

Egis 24 MFFI Repair: £120-250

Source

Ariston Red LED I 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