BoilerFaultCodes 107 High
Boiler Fault Code 107
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 107 appears across 2 boiler brands 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 has detected that water is not circulating properly through the system, often caused by trapped air or a blockage. (As reported on Ariston Alteas One)
Pick your boiler brand for the 107 fix
Source
Information for the 107 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