BoilerFaultCodes Pump rotor blocked High
Boiler Fault Code Pump rotor blocked
Also written as PUMPROTORBLOCKED — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Pump rotor blocked appears across 1 boiler brand and 7 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler's internal water circulator has stopped spinning, which prevents heat from moving through your home and can cause the system to shut down. (As reported on Ideal Compact)
Pick your boiler brand for the Pump rotor blocked fix
Source
Information for the Pump rotor blocked 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