BoilerFaultCodes d.96 Medium
Boiler Fault Code d.96
Also written as D96 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code d.96 appears across 3 boiler brands and 25 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler has reverted to its original factory settings, which usually occurs after an electrical reset or a memory glitch and means the unit currently lacks your custom heating and water configuration. (As reported on Heatline Capriz Plus)
Pick your boiler brand for the d.96 fix
Source
Information for the d.96 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 31 August 2026