BoilerFaultCodes 2.2 High
Boiler Fault Code 2.2
Also written as 22 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 2.2 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 is struggling to circulate water properly because it cannot communicate correctly with its internal water pump. (As reported on Worcester Bosch ZB 7 27 HE)
Pick your boiler brand for the 2.2 fix
Source
Information for the 2.2 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