BoilerFaultCodes rE Medium
Boiler Fault Code rE
Also written as RE — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code rE appears across 1 boiler brand and 10 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler is undergoing a system reset, which means it is attempting to restart itself after detecting an internal error or interruption. (As reported on Worcester Bosch GB162)
Pick your boiler brand for the rE fix
Source
Information for the rE 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