F15 High

Euroterm F15 Fault Code

The Euroterm F15 fault code means: your boiler has detected a problem with the fan that clears exhaust gases, preventing the system from starting for your safety.. It appears on 1 Euroterm 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: Fan problem. Possible cause: Tachometer signal interrupted, fan connection, Fan damaged, debris in fan.
Typical repair cost £180-350 (including labour)

Engineer required

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

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Euroterm models that show the F15 fault code

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

Source

Euroterm F15 fault code information on this page is sourced and cross-checked against the official Euroterm service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026