How much does it cost to fix boiler error code 0A15?

Typical repair cost for the boiler 0A15 fault is £120-200 including labour.

0A15 High

Boiler Fault Code 0A15

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code 0A15 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's temperature sensors are giving conflicting readings, causing the system to stop operating to prevent potential damage. (As reported on Alpha Pro Tec Plus)

Pick your boiler brand for the 0A15 fix

Alpha 0A15 3 models

Source

Information for the 0A15 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