How much does it cost to fix Saunier Duval error code 10?

Typical repair cost for the Saunier Duval 10 fault is £120-200 including labour.

10 High

Saunier Duval 10 Fault Code

Q: What does the Saunier Duval 10 fault code mean?

Your boiler is having trouble reading the temperature of the water returning from your radiators, which means it has stopped heating your home to prevent potential overheating.

The Saunier Duval 10 fault code means: your boiler is having trouble reading the temperature of the water returning from your radiators, which means it has stopped heating your home to prevent potential overheating.. It appears on 4 Saunier Duval models in our database.

Technical description: Central heating return NTC fault

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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Saunier Duval models that show the 10 fault code

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

Source

Saunier Duval 10 fault code information on this page is sourced and cross-checked against the official Saunier Duval service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026