How much does it cost to fix boiler error code P30?

Typical repair cost for the boiler P30 fault is £150-300 including labour.

P30 High

Boiler Fault Code P30

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 7 July 2026

Fault code P30 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 struggling to get the internal fan spinning at the right speed to safely clear exhaust gases, so it has stopped working to prevent a safety risk. (As reported on Alpha Pro Tec 24)

Pick your boiler brand for the P30 fix

Alpha P30 2 models

Source

Information for the P30 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 7 July 2026