0.8bar High

Boiler Fault Code 0.8bar

Also written as 08BAR — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code 0.8bar 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 that the water pressure is too low for it to operate safely and effectively. (As reported on Heatline Solaris)

Pick your boiler brand for the 0.8bar fix

Heatline 0.8bar 1 model

Source

Information for the 0.8bar 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