How much does it cost to fix boiler error code 547?

Typical repair cost for the boiler 547 fault is £150-300 including labour.

547 High

Boiler Fault Code 547

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code 547 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 experiencing a communication fault between its internal control systems, which prevents it from operating correctly. (As reported on Ariston HS Premium)

Pick your boiler brand for the 547 fix

Ariston 547 1 model

Source

Information for the 547 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