F 1 0 High

Ferroli F 1 0 Fault Code

Also written as F10 — same fault.

The Ferroli F 1 0 fault code means: your boiler has stopped producing heat and hot water because it is failing to accurately measure the internal temperature of the water.. It appears on 1 Ferroli model in our database.

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description: Outlet sensor faulty
Typical repair cost £120-220 (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 F 1 0 fault code

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

Source

Ferroli F 1 0 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 7 July 2026