BoilerFaultCodes 707 High
Boiler Fault Code 707
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 707 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 an internal communication failure between the electronic control boards, meaning the main system cannot talk to its secondary controls. (As reported on Ariston Alteas One)
Pick your boiler brand for the 707 fix
Source
Information for the 707 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