BoilerFaultCodes E83 458 High
Boiler Fault Code E83 458
Also written as E83458 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code E83 458 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 internal fan responsible for safely removing exhaust gases is not operating correctly, so it has shut down to keep your home safe. (As reported on Potterton Promax 15 & 24)
Pick your boiler brand for the E83 458 fix
Source
Information for the E83 458 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