How much does it cost to fix boiler error code 1073?

Typical repair cost for the boiler 1073 fault is £120-220 including labour.

1073 High

Boiler Fault Code 1073

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 7 July 2026

Fault code 1073 appears across 1 boiler brand and 4 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has detected a faulty electrical signal regarding how hot the water is inside the system and has stopped working to prevent damage. (As reported on Worcester Bosch Greenstar 1000)

Pick your boiler brand for the 1073 fix

Worcester Bosch 1073 4 models

Source

Information for the 1073 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 7 July 2026