How much does it cost to fix boiler error code J47?

Typical repair cost for the boiler J47 fault is £450-850 including labour.

J47 High

Boiler Fault Code J47

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code J47 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 heat pump's internal power control system has encountered a fault, meaning the outdoor unit cannot communicate properly with the compressor to provide heating or hot water. (As reported on Ideal HP290)

Pick your boiler brand for the J47 fix

Ideal J47 1 model

Source

Information for the J47 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