How much does it cost to fix Ariston error code AA0011?

Typical repair cost for the Ariston AA0011 fault is £100-350 including labour.

AA0011 High

Ariston AA0011 Fault Code

Q: What does the Ariston AA0011 fault code mean?

Your boiler has tried to light several times but has failed to create or detect a flame, causing the system to lock out for safety.

The Ariston AA0011 fault code means: your boiler has tried to light several times but has failed to create or detect a flame, causing the system to lock out for safety.. It appears on 7 Ariston models in our database.

Technical description: Too many attempts to ignite on starting up

Typical repair cost £100-350 (including labour)

DIY fix possible

Check if your gas supply is active by testing other gas appliances like a hob.Verify that your credit meter has sufficient balance if applicable.Press the Reset button on the control panel to see if the boiler restarts.

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Ariston models that show the AA0011 fault code

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

Source

Ariston AA0011 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