BoilerFaultCodesFerroli 31 Fault Code
The Ferroli 31 fault code means: your boiler has temporarily paused because it detected a slight inconsistency in its internal readings, but it will restart automatically once things return to normal.. It appears on 3 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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Gas Safe Register →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 27 April 2026