How much does it cost to fix boiler error code E 65?

Typical repair cost for the boiler E 65 fault is £150-300 including labour.

E 65 High

Boiler Fault Code E 65

Also written as E65 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code E 65 appears across 2 boiler brands 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's fan is not spinning fast enough to clear waste gases safely, so it has shut down to prevent a hazard. (As reported on Vokera Hydra)

Pick your boiler brand for the E 65 fix

Ideal E 65 1 model Vokera E 65 1 model

Source

Information for the E 65 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