Fault 14 / 118 High

Boiler Fault Code Fault 14 / 118

Also written as FAULT14118 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code Fault 14 / 118 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's internal computer has lost communication with its connected hot water or smart control components due to a settings mismatch. (As reported on Worcester Bosch Greenstar CDi Compact)

Pick your boiler brand for the Fault 14 / 118 fix

Source

Information for the Fault 14 / 118 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