BoilerFaultCodes A00.00 Low
Boiler Fault Code A00.00
Also written as A0000 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code A00.00 appears across 1 boiler brand and 1 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler is currently running normally but has detected a minor issue that requires attention before it potentially stops working altogether. (As reported on Remeha Quinta Ace 30)
Pick your boiler brand for the A00.00 fix
Source
Information for the A00.00 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