BoilerFaultCodes Incorrect water flow rate High
Boiler Fault Code Incorrect water flow rate
Also written as INCORRECTWATERFLOWRATE — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Incorrect water flow rate 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 detect the flow of water needed to heat your taps, usually because the incoming water supply is restricted or a internal sensor is stuck. (As reported on Worcester Bosch WR325 RSF)
Pick your boiler brand for the Incorrect water flow rate fix
Source
Information for the Incorrect water flow rate 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