How much does it cost to fix boiler error code FO30?

Typical repair cost for the boiler FO30 fault is £120-£200 including labour.

FO30 High

Boiler Fault Code FO30

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code FO30 appears across 1 boiler brand and 1 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 it cannot detect any water flowing through the system, meaning it cannot safely heat your home or water. (As reported on Intergas Xtreme / Xclusive)

Pick your boiler brand for the FO30 fix

Intergas FO30 1 model

Source

Information for the FO30 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