E24 High

Boiler Fault Code E24

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code E24 appears across 8 boiler brands and 57 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has shut down because it keeps losing water pressure and likely has a leak somewhere in the heating system or the unit itself. (As reported on Keston C36)

Pick your boiler brand for the E24 fix

Alpha E24 27 models Baxi E24 2 models Biasi E24 7 models Ferroli E24 1 model Keston E24 9 models Main E24 1 model Ravenheat E24 9 models Vokera E24 1 model

Source

Information for the E24 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