BoilerFaultCodes E90-627 High
Boiler Fault Code E90-627
Also written as E90627 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code E90-627 appears across 1 boiler brand and 6 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler is failing to light because it cannot properly control the fuel supply, meaning you currently have no heating or hot water. (As reported on Ideal Mini HE)
Pick your boiler brand for the E90-627 fix
Source
Information for the E90-627 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