BoilerFaultCodes 10 High
Boiler Fault Code 10
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 10 appears across 32 boiler brands and 173 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 a sensor that monitors the temperature of the water returning from your radiators has developed a fault. (As reported on Glow-worm 30ci Plus)
Pick your boiler brand for the 10 fix
Alpha 10 23 models Ariston 10 6 models Atag 10 9 models Atmos 10 4 models Baxi 10 15 models Biasi 10 7 models Chaffoteaux 10 7 models Daikin 10 3 models ECA 10 1 model Ferroli 10 4 models Gledhill 10 1 model Glow-worm 10 5 models Grant 10 10 models Heatline 10 3 models Ideal 10 5 models Intergas 10 11 models Main 10 1 model Malvern 10 1 model Myson 10 1 model Navien 10 1 model Potterton 10 6 models Pro 10 1 model Remeha 10 4 models Saunier Duval 10 5 models Servowarm 10 1 model Sime 10 3 models Unical 10 2 models Vaillant 10 2 models Viessmann 10 12 models Vokera 10 14 models Warmworld 10 1 model Worcester Bosch 10 4 models
Source
Information for the 10 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