BoilerFaultCodes E 10 High
Boiler Fault Code E 10
Also written as E10 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code E 10 appears across 2 boiler brands and 6 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler has stopped heating because a safety sensor has detected that your underfloor heating system is getting too hot or there is a break in the connection to its thermostat. (As reported on Ariston Genus Premium)
Pick your boiler brand for the E 10 fix
Source
Information for the E 10 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 31 August 2026