14 High

Boiler Fault Code 14

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code 14 appears across 14 boiler brands and 53 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has likely overheated because the water isn't moving through the system properly or a sensor has detected an unsafe temperature. (As reported on Glow-worm Xtramax HE)

Pick your boiler brand for the 14 fix

Alpha 14 1 model Ariston 14 6 models Atag 14 1 model Biasi 14 4 models Ferroli 14 3 models Glow-worm 14 8 models Grant 14 1 model Ideal 14 1 model Intergas 14 10 models Potterton 14 1 model Remeha 14 2 models Saunier Duval 14 8 models Vokera 14 4 models Worcester Bosch 14 3 models

Source

Information for the 14 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