How much does it cost to fix boiler error code E57-049?

Typical repair cost for the boiler E57-049 fault is £250-400 including labour.

E57-049 High

Boiler Fault Code E57-049

Also written as E57049 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code E57-049 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 having difficulty transferring heat to your hot water supply, likely due to a blockage or a leak within the internal heat exchanger component. (As reported on Ideal Mini HE)

Pick your boiler brand for the E57-049 fix

Ideal E57-049 6 models

Source

Information for the E57-049 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