BoilerFaultCodes Boiler Fault Finding 5 Emergency
Boiler Fault Code Boiler Fault Finding 5
Also written as BOILERFAULTFINDING5 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Boiler Fault Finding 5 appears across 1 boiler brand and 5 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler is not burning fuel correctly and is producing smoke, which indicates a serious safety issue that requires professional attention immediately. (As reported on Grant Vortex Eco)
Pick your boiler brand for the Boiler Fault Finding 5 fix
Source
Information for the Boiler Fault Finding 5 fault code is sourced from the official service / installation manual for each model that displays it. Read more about how we source fault codes →
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026