L.E.D. E (Yellow) Emergency

Ariston L.E.D. E (Yellow) Fault Code

Also written as LEDEYELLOW — same fault.

The Ariston L.E.D. E (Yellow) fault code means: your boiler has detected a problem with clearing its exhaust fumes and has safely turned itself off to prevent carbon monoxide buildup.. It appears on 1 Ariston model in our database.

Act immediately

Turn off your boiler and stop using gas appliances. Call a Gas Safe engineer now. This fault can be dangerous if ignored.

Technical description: Exhaust Discharge Anomaly Shutdown: The boiler is fitted with safety devices, which in the event of defective discharge of exhaust products, automatically interrupts the gas supply, thereby shutting off the boiler for a period of about 15 minutes.
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. E (Yellow) fault code

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

Source

Ariston L.E.D. E (Yellow) 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