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

Typical repair cost for the boiler Insufficient water pressure fault is £80-120 including labour.

Insufficient water pressure High

Boiler Fault Code Insufficient water pressure

Also written as INSUFFICIENTWATERPRESSURE — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code Insufficient water pressure appears across 1 boiler brand and 5 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has stopped working because the water pressure inside your heating system has dropped too low to operate safely. (As reported on Ariston E-Combi One 30)

Pick your boiler brand for the Insufficient water pressure fix

Ariston Insufficient water pressure 5 models

Source

Information for the Insufficient water 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