How much does it cost to fix boiler error code 151?

Typical repair cost for the boiler 151 fault is £280-£550 including labour.

151 High

Boiler Fault Code 151

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 7 July 2026

Fault code 151 appears across 3 boiler brands and 14 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 fan that removes waste gases is not spinning at the correct speed or the main control board has developed a fault. (As reported on Atag iC28)

Pick your boiler brand for the 151 fix

Atag 151 5 models Baxi 151 8 models ECA 151 1 model

Source

Information for the 151 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