0.6 bar Medium

Boiler Fault Code 0.6 bar

Also written as 06BAR — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code 0.6 bar 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 is currently reporting that the water pressure inside the system is too low to operate your hot water and heating safely. (As reported on Keston R-sm 20 FB)

Pick your boiler brand for the 0.6 bar fix

Keston 0.6 bar 1 model

Source

Information for the 0.6 bar 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