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

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

L.E.D. I High

Ariston L.E.D. I Fault Code

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

Your boiler has failed to light the gas burner for heating or hot water, usually because the fuel supply is interrupted or the ignition system isn't sparking correctly.

Also written as LEDI — same fault.

The Ariston L.E.D. I fault code means: your boiler has failed to light the gas burner for heating or hot water, usually because the fuel supply is interrupted or the ignition system isn't sparking correctly.. It appears on 6 Ariston models in our database.

Technical description: IGNITION FAILURE: This indicates ignition failure when a flame is not detected within 7 seconds of starting an ignition sequence.

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 L.E.D. I fault code

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

Source

Ariston L.E.D. 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