Boiler Fault Code Permanent Live

Also written as PERMANENTLIVE — same fault.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026

Fault code Permanent Live appears across 1 boiler brand and 2 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 in electrical setup mode, which simply means it is receiving power to verify that the wiring connection is active. (As reported on Potterton Ultra 2 50 DV)