BoilerFaultCodes 8.E High
Boiler Fault Code 8.E
Also written as 8E — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 8.E 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's internal memory has encountered an error and has reverted to its factory default settings, meaning it needs reconfiguring to work with your heating system. (As reported on Worcester Bosch Greenstar CDi Compact)
Pick your boiler brand for the 8.E fix
Source
Information for the 8.E 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