BoilerFaultCodes E57-048 High
Boiler Fault Code E57-048
Also written as E57048 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code E57-048 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 struggling to heat your tap water because an internal seal or flow component is faulty, causing the system to stop working properly. (As reported on Ideal Mini HE)
Pick your boiler brand for the E57-048 fix
Source
Information for the E57-048 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