How much does it cost to fix boiler error code B06?

Typical repair cost for the boiler B06 fault is £150-250 including labour.

B06 High

Boiler Fault Code B06

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code B06 appears across 1 boiler brand and 6 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler is struggling to detect that there is enough water flowing through its internal system to safely turn on your heating. (As reported on Ariston E-Combi One 30)

Pick your boiler brand for the B06 fix

Ariston B06 6 models

Source

Information for the B06 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