BoilerFaultCodes E01-490 High
Boiler Fault Code E01-490
Also written as E01490 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code E01-490 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 has detected a failure to ignite or a persistent loss of flame, meaning it cannot start up to provide heat or hot water. (As reported on Ideal Mexico Super 100FF / 125FF)
Pick your boiler brand for the E01-490 fix
Source
Information for the E01-490 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