High
Ignition Failure on Ariston Excalibur

Your boiler is unable to light the gas burner to provide heating or hot water and has shut down for safety.

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

Ignition failure when a flame is not detected within 7 seconds of starting an ignition sequence. L.E.D. 'D' (or 'K' in diagrams) will illuminate to signal the shutdown status.

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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