13 High

Boiler Fault Code 13

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code 13 appears across 17 boiler brands and 74 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has detected a problem with its primary temperature sensor and has shut down as a safety precaution to prevent overheating. (As reported on Intergas Rapid 25 32)

Pick your boiler brand for the 13 fix

Alpha 13 1 model Ariston 13 6 models Atag 13 1 model Biasi 13 4 models Chaffoteaux 13 3 models Ferroli 13 3 models Glow-worm 13 8 models Grant 13 1 model Halstead 13 8 models Ideal 13 2 models Intergas 13 10 models Johnson Starley 13 10 models Potterton 13 1 model Remeha 13 2 models Saunier Duval 13 8 models Vokera 13 4 models Worcester Bosch 13 2 models

Source

Information for the 13 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