P02 Low

Boiler Fault Code P02

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code P02 appears across 2 boiler brands and 3 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 taking a short break to allow the water in your radiators to cool down before it restarts, which is a normal part of its operating cycle. (As reported on Ferroli Leb TS)

Pick your boiler brand for the P02 fix

Alpha P02 2 models Ferroli P02 1 model

Source

Information for the P02 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