BoilerFaultCodes 6 07 High
Boiler Fault Code 6 07
Also written as 607 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 6 07 appears across 1 boiler brand and 2 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 start because it detects a sensor error that thinks the internal fan is running even when it is switched off. (As reported on Ariston Clas System 28)
Pick your boiler brand for the 6 07 fix
Source
Information for the 6 07 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