How much does it cost to fix boiler error code 414?

Typical repair cost for the boiler 414 fault is £280-450 including labour.

414 High

Boiler Fault Code 414

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code 414 appears across 2 boiler brands and 6 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 encountered a critical electronic error and has stopped working to protect the system. (As reported on Ideal Ideal Classic SE15P FF)

Pick your boiler brand for the 414 fix

Ariston 414 4 models Ideal 414 2 models

Source

Information for the 414 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