How much does it cost to fix Ariston error code S 80?

Typical repair cost for the Ariston S 80 fault is £120-200 including labour.

S 80 High

Ariston S 80 Fault Code

Q: What does the Ariston S 80 fault code mean?

Your boiler's wall-mounted thermostat control is unable to communicate with its temperature sensor, which is causing it to stop the heating system from working as intended.

Also written as S80 — same fault.

The Ariston S 80 fault code means: your boiler's wall-mounted thermostat control is unable to communicate with its temperature sensor, which is causing it to stop the heating system from working as intended.. It appears on 5 Ariston models in our database.

Technical description: Open circuit or short circuit on room sensor of the Clima Manager remote control

Typical repair cost £120-200 (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 80 fault code

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

Source

Ariston S 80 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