BoilerFaultCodes 193 High
Boiler Fault Code 193
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 193 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 move water around the system correctly, which is likely caused by trapped air or a failing pump. (As reported on Potterton Promax Combi HE Plus)
Pick your boiler brand for the 193 fix
Source
Information for the 193 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