106 High
Boiler Fault Code 106
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 106 appears across 1 boiler brand and 1 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 there is not enough water pressure or circulation to function properly and has shut down for safety. (As reported on Ariston Alteas One)
Pick your boiler brand for the 106 fix
Source
Information for the 106 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