BoilerFaultCodesFerroli Boiler sooting Fault Code
Also written as BOILERSOOTING — same fault.
The Ferroli Boiler sooting fault code means: your boiler is struggling to burn the gas cleanly, which can lead to a dangerous buildup of soot and harmful fumes inside the appliance.. It appears on 2 Ferroli models in our database.
Technical description: Faulty flame adjustment. Check that the burner flame is adjusted correctly and that gas consumption is correct for the boiler output. Burner air ports blocked. Clear air ports
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Avoid the next call-out bill
A cover plan would handle faults like Boiler sooting: no call-out fees, no surprise bills.
Affiliate links. We may earn a commission at no extra cost to you.
Ferroli models that show the Boiler sooting fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Ferroli Boiler sooting 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