How much does it cost to fix boiler error code Flashing pressure?

Typical repair cost for the boiler Flashing pressure fault is £80-150 including labour.

Flashing pressure High

Boiler Fault Code Flashing pressure

Also written as FLASHINGPRESSURE — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code Flashing pressure 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 has detected that the water pressure level inside the heating system has dropped below the required amount to operate safely. (As reported on Saunier Duval Themaclassic F23E)

Pick your boiler brand for the Flashing pressure fix

Saunier Duval Flashing pressure 2 models

Source

Information for the Flashing pressure 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