Boiler Fault Code Fan Purge

Also written as FANPURGE — same fault.

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

Fault code Fan Purge 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 running a process to clear any leftover gases from the burn chamber before it attempts to light, which is a normal safety routine. (As reported on Potterton Envoy 30)