BoilerFaultCodes 164 229 Medium
Boiler Fault Code 164 229
Also written as 164229 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 164 229 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 detected a physical seal failure, likely causing a small water leak inside the appliance casing that needs to be addressed to prevent damage to internal electrical components. (As reported on Ariston Excalibur)
Pick your boiler brand for the 164 229 fix
Source
Information for the 164 229 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 7 July 2026