How much does it cost to fix boiler error code H E?

Typical repair cost for the boiler H E fault is £150-300 including labour.

H E High

Boiler Fault Code H E

Also written as HE — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code H E appears across 1 boiler brand and 7 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 a communication conflict between its internal electronic control panels, meaning it cannot currently coordinate its functions safely. (As reported on Ideal Icos System)

Pick your boiler brand for the H E fix

Ideal H E 7 models

Source

Information for the H E 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