BoilerFaultCodes E 24 High
Boiler Fault Code E 24
Also written as E24 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code E 24 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 the water is cooling down as it travels through the system instead of heating up, indicating a communication issue between the sensors or a circulation problem. (As reported on Vokera Eclipse)
Pick your boiler brand for the E 24 fix
Source
Information for the E 24 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 7 July 2026