BoilerFaultCodes d.06 Low
Boiler Fault Code d.06
Also written as D06 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code d.06 appears across 2 boiler brands and 19 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning This code is simply an information display showing the temperature setting your boiler is currently aiming to reach for your hot water taps, rather than an error or fault. (As reported on Glow-worm Flexicom 24c / 28c)
Pick your boiler brand for the d.06 fix
Source
Information for the d.06 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