FLASHING 2 Per Sec. Low

Boiler Fault Code FLASHING 2 Per Sec.

Also written as FLASHING2PERSEC — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code FLASHING 2 Per Sec. 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 working correctly and has simply reached the temperature you set, so it has temporarily switched off to save energy. (As reported on Potterton Prima 30B)

Pick your boiler brand for the FLASHING 2 Per Sec. fix

Potterton FLASHING 2 Per Sec. 2 models

Source

Information for the FLASHING 2 Per Sec. 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