BoilerFaultCodes 329 / CE High
Boiler Fault Code 329 / CE
Also written as 329CE — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 329 / CE appears across 1 boiler brand and 2 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 movement of water needed to heat your home, which has caused it to stop working for safety reasons. (As reported on Worcester Bosch Greenstar CDi Compact)
Pick your boiler brand for the 329 / CE fix
Source
Information for the 329 / CE 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