How much does it cost to fix Ferroli error code C-7?

Typical repair cost for the Ferroli C-7 fault is £150-250 including labour.

C-7 High

Ferroli C-7 Fault Code

Q: What does the Ferroli C-7 fault code mean?

Your boiler has detected an issue with the airflow system which prevents it from igniting safely, so it has shut down to protect your home.

Also written as C7 — same fault.

The Ferroli C-7 fault code means: your boiler has detected an issue with the airflow system which prevents it from igniting safely, so it has shut down to protect your home.. It appears on 2 Ferroli models in our database.

Technical description: fan (16) not running at full speed or air flow too low: air pressure switch (43) faulty

Typical repair cost £150-250 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Ferroli models that show the C-7 fault code

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

Source

Ferroli C-7 fault code information on this page is sourced and cross-checked against the official Ferroli service / installation manuals for each affected model.

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