17 High

Boiler Fault Code 17

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code 17 appears across 10 boiler brands and 29 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler is not receiving enough electrical power from your home's mains supply to operate safely. (As reported on Glow-worm Ci Plus)

Pick your boiler brand for the 17 fix

Alpha 17 1 model Atag 17 1 model Ferroli 17 3 models Glow-worm 17 5 models Ideal 17 1 model Ravenheat 17 8 models Remeha 17 2 models Saunier Duval 17 6 models Vokera 17 1 model Worcester Bosch 17 1 model

Source

Information for the 17 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