BoilerFaultCodes U4-67 High
Boiler Fault Code U4-67
Also written as U467 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code U4-67 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 has experienced a communication error that has stopped it from working, and it requires a manual power reset to clear the internal memory. (As reported on Daikin D2CND)
Pick your boiler brand for the U4-67 fix
Source
Information for the U4-67 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