How much does it cost to fix boiler error code Wrench symbol?

Typical repair cost for the boiler Wrench symbol fault is £80-£120 including labour.

Wrench symbol Low

Boiler Fault Code Wrench symbol

Also written as WRENCHSYMBOL — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code Wrench symbol 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 is notifying you that it is due for its routine annual service to keep it running safely and efficiently. (As reported on Biasi Rinnova Adaptive Combi)

Pick your boiler brand for the Wrench symbol fix

Biasi Wrench symbol 2 models

Source

Information for the Wrench symbol 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