1010 High

Boiler Fault Code 1010

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code 1010 appears across 1 boiler brand and 10 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler's internal computer system has lost communication with its external controls or smart thermostat, meaning it cannot receive instructions to turn on. (As reported on Worcester Bosch Greenstar 8000 Life/Style)

Pick your boiler brand for the 1010 fix

Source

Information for the 1010 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