BoilerFaultCodesAriston Ignition Failure Fault Code
Also written as IGNITIONFAILURE — same fault.
The Ariston Ignition Failure fault code means: your boiler is unable to light the gas burner to provide heating or hot water and has shut down for safety.. It appears on 2 Ariston models in our database.
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.
DIY fix possible
Check if other gas appliances, like a cooker, are working to ensure gas is reaching the property.Ensure your gas meter has credit if you use a pre-payment meter.Press the 'Reset' button on the control panel to attempt a restart.
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A cover plan would handle faults like Ignition Failure: no call-out fees, no surprise bills.
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Ariston models that show the Ignition Failure fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Ariston Ignition Failure 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 7 July 2026