0 0. High

Boiler Fault Code 0 0.

Also written as 00 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code 0 0. appears across 2 boiler brands and 13 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 flame signal when it shouldn't be there, which has caused it to shut down for safety purposes. (As reported on Remeha Quinta Ace 25)

Pick your boiler brand for the 0 0. fix

Remeha 0 0. 3 models Worcester Bosch 0 0. 10 models

Source

Information for the 0 0. 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