BoilerFaultCodesFerroli 31 Fault Code
The Ferroli 31 fault code means: your boiler is temporarily pausing its operation to protect itself because it has detected an unusual temperature reading, but it should restart on its own once it cools down.. It appears on 4 Ferroli models in our database.
Technical description: Temporary shutdown fault - resets automatically as soon as the value comes back within the boiler’s normal working range
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 31 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Ferroli 31 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