BoilerFaultCodes 0Y Low
Boiler Fault Code 0Y
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 0Y 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 has paused briefly because the water inside has reached its maximum set temperature and is waiting for it to cool down before firing up again. (As reported on Ideal Maximiser SE)
Pick your boiler brand for the 0Y fix
Source
Information for the 0Y 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