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

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

L.E.D. I (Red) Emergency

Ariston L.E.D. I (Red) Fault Code

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

Your boiler has detected that the water inside has become dangerously hot and has automatically shut itself down to prevent damage.

Also written as LEDIRED — same fault.

The Ariston L.E.D. I (Red) fault code means: your boiler has detected that the water inside has become dangerously hot and has automatically shut itself down to prevent damage.. It appears on 6 Ariston models in our database.

Technical description: OVERHEATING: This control shuts off the boiler in the case where the primary circuit reaches a temperature in excess of 105°C.

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 (Red) fault code

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

Source

Ariston L.E.D. I (Red) 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