BoilerFaultCodes 17 High
Boiler Fault Code 17
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 17 appears across 16 boiler brands and 48 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 3 models Atag 17 1 model Baxi 17 3 models Ferroli 17 4 models Firebird 17 1 model Gledhill 17 1 model Glow-worm 17 9 models Heatline 17 3 models Ideal 17 5 models Ravenheat 17 6 models Remeha 17 1 model Saunier Duval 17 5 models Sime 17 1 model Unical 17 2 models Vokera 17 2 models 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 7 July 2026