How much does it cost to fix Ariston error code 7 06?

Typical repair cost for the Ariston 7 06 fault is £120-250 including labour.

7 06 High

Ariston 7 06 Fault Code

Q: What does the Ariston 7 06 fault code mean?

Your boiler has detected that the water flowing to a secondary heating area, like an upstairs radiator circuit or underfloor heating, has become dangerously hot and has shut itself down to prevent damage.

Also written as 706 — same fault.

The Ariston 7 06 fault code means: your boiler has detected that the water flowing to a secondary heating area, like an upstairs radiator circuit or underfloor heating, has become dangerously hot and has shut itself down to prevent damage.. It appears on 9 Ariston models in our database.

Technical description: Zone2 Overheat

Typical repair cost £120-250 (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 7 06 fault code

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

Source

Ariston 7 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