How much does it cost to fix boiler error code 24 V fuse blown?

Typical repair cost for the boiler 24 V fuse blown fault is £120-200 including labour.

24 V fuse blown High

Boiler Fault Code 24 V fuse blown

Also written as 24VFUSEBLOWN — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code 24 V fuse blown appears across 1 boiler brand and 2 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has stopped working because an internal safety fuse has tripped to protect its electrical system from an unexpected power surge or short circuit. (As reported on Worcester Bosch Greenstar R29 40 HE)

Pick your boiler brand for the 24 V fuse blown fix

Worcester Bosch 24 V fuse blown 2 models

Source

Information for the 24 V fuse blown 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