BoilerFaultCodes Boiler Fault Finding 8 High
Boiler Fault Code Boiler Fault Finding 8
Also written as BOILERFAULTFINDING8 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Boiler Fault Finding 8 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 failing to get hot enough because it is not receiving the correct amount of fuel or is set up incorrectly, meaning it cannot provide you with heating or hot water. (As reported on Grant Vortex Eco)
Pick your boiler brand for the Boiler Fault Finding 8 fix
Source
Information for the Boiler Fault Finding 8 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