How much does it cost to fix boiler error code P14?

Typical repair cost for the boiler P14 fault is £100-200 including labour.

P14 Low

Boiler Fault Code P14

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 7 July 2026

Fault code P14 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 read the temperature from an outdoor sensor, which is causing it to adjust your heating settings unexpectedly. (As reported on Alpha Pro Tec 24)

Pick your boiler brand for the P14 fix

Alpha P14 2 models

Source

Information for the P14 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