Ferroli E02 Fault Code
The Ferroli E02 fault code means: your boiler has switched itself off because it has become dangerously hot inside, suggesting a blockage or a failure in the system's ability to circulate water.. It appears on 9 Ferroli models in our database.
Technical description: Safety overheat thermostat trip
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Gas Safe Register →Ferroli models that show the E02 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Ferroli E02 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