How much does it cost to fix boiler error code 13-64 / 13-65?

Typical repair cost for the boiler 13-64 / 13-65 fault is £250-£450 including labour.

13-64 / 13-65 High

Boiler Fault Code 13-64 / 13-65

Also written as 13641365 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code 13-64 / 13-65 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 fan is not spinning at the correct speed to safely clear waste gases, causing the system to shut down for safety. (As reported on Daikin D2CND)

Pick your boiler brand for the 13-64 / 13-65 fix

Daikin 13-64 / 13-65 1 model

Source

Information for the 13-64 / 13-65 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