How much does it cost to fix boiler error code 0E45?

Typical repair cost for the boiler 0E45 fault is £120-220 including labour.

0E45 High

Boiler Fault Code 0E45

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code 0E45 appears across 1 boiler brand and 3 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 an issue with the sensor that monitors the temperature of the gases leaving your system, which is preventing it from firing up safely. (As reported on Alpha Pro Tec Plus)

Pick your boiler brand for the 0E45 fix

Alpha 0E45 3 models

Source

Information for the 0E45 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