How much does it cost to fix Ariston error code S 06?

Typical repair cost for the Ariston S 06 fault is £150-300 including labour.

S 06 Emergency

Ariston S 06 Fault Code

Q: What does the Ariston S 06 fault code mean?

Your boiler is attempting to light, but the flame is physically lifting away from the burner, which indicates an issue with the gas-to-air mixture or the combustion system.

Also written as S06 — same fault.

The Ariston S 06 fault code means: your boiler is attempting to light, but the flame is physically lifting away from the burner, which indicates an issue with the gas-to-air mixture or the combustion system.. It appears on 5 Ariston models in our database.

Technical description: Flame separation

Typical repair cost £150-300 (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 S 06 fault code

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

Source

Ariston S 06 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