BoilerFaultCodes 0E25 High
Boiler Fault Code 0E25
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 0E25 appears across 1 boiler brand and 3 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler's central control computer is experiencing a critical internal failure and has stopped the system from operating to prevent further damage. (As reported on Alpha Pro Tec Plus)
Pick your boiler brand for the 0E25 fix
Source
Information for the 0E25 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