High
Red LED Out (Lockout) on Ferroli DOMINAplus F24D

Your boiler has stopped working because it cannot safely ignite the flame required to provide heating or hot water.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description

Boiler lockout without sparking: check overheat stat. If sparking starts but burner does not light: check gas supply, pressure, or gas valve.

Engineer required

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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