BoilerFaultCodes E01 553 High
Boiler Fault Code E01 553
Also written as E01553 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code E01 553 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 failed to ignite or stay lit, which means you currently have no heating or hot water, and a gas-safe engineer is required to investigate the internal ignition system. (As reported on Ideal Mexico CF3 40 & 50)
Pick your boiler brand for the E01 553 fix
Source
Information for the E01 553 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