How much does it cost to fix boiler error code 54145?

Typical repair cost for the boiler 54145 fault is £90-250 including labour.

54145 Low

Boiler Fault Code 54145

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code 54145 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’s solar hot water system hasn't reached the high temperature needed to properly disinfect the cylinder, often because a cleaning cycle was interrupted or a pump is struggling. (As reported on Worcester Bosch Greenstar CDi Compact)

Pick your boiler brand for the 54145 fix

Worcester Bosch 54145 1 model

Source

Information for the 54145 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