L2 High

Boiler Fault Code L2

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code L2 appears across 5 boiler brands and 33 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has stopped working because it cannot light a flame, which is often caused by a lack of gas supply or a blocked pipe. (As reported on Ideal Logic Combi C24 C30 C35)

Pick your boiler brand for the L2 fix

Baxi L2 1 model Firebird L2 1 model Ideal L2 19 models Keston L2 8 models Vokera L2 4 models

Source

Information for the L2 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