119 High

Boiler Fault Code 119

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code 119 appears across 4 boiler brands and 32 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has stopped working because the water pressure in the central heating system has dropped too low. (As reported on Potterton Promax Combi HE Plus)

Pick your boiler brand for the 119 fix

Atag 119 4 models Baxi 119 26 models Potterton 119 1 model Worcester Bosch 119 1 model

Source

Information for the 119 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