BoilerFaultCodes E26 398 High
Boiler Fault Code E26 398
Also written as E26398 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code E26 398 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 is unable to light the burner because a critical ignition cable is damaged or disconnected. (As reported on Ideal Mexico Super CF3 40-80)
Pick your boiler brand for the E26 398 fix
Source
Information for the E26 398 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