How much does it cost to fix Saunier Duval error code 07?

Typical repair cost for the Saunier Duval 07 fault is £120-200 including labour.

07 Medium

Saunier Duval 07 Fault Code

Q: What does the Saunier Duval 07 fault code mean?

Your boiler is struggling to detect the temperature of the water it is trying to heat for your taps and shower, so it has turned off that function to prevent any issues.

The Saunier Duval 07 fault code means: your boiler is struggling to detect the temperature of the water it is trying to heat for your taps and shower, so it has turned off that function to prevent any issues.. It appears on 6 Saunier Duval models in our database.

Technical description: Domestic hot water 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 07 fault code

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

Source

Saunier Duval 07 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