How much does it cost to fix boiler error code FAIL POINT G Primary Overheat?

Typical repair cost for the boiler FAIL POINT G Primary Overheat fault is £150-300 including labour.

FAIL POINT G Primary Overheat High

Boiler Fault Code FAIL POINT G Primary Overheat

Also written as FAILPOINTGPRIMARYOVERHEAT — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code FAIL POINT G Primary Overheat 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 detected that it is getting dangerously hot and has shut itself down to prevent damage. (As reported on Worcester Bosch Greenstar Si)

Pick your boiler brand for the FAIL POINT G Primary Overheat fix

Worcester Bosch FAIL POINT G Primary Overheat 1 model

Source

Information for the FAIL POINT G Primary Overheat 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