How much does it cost to fix boiler error code Bar?

Typical repair cost for the boiler Bar fault is £120-200 including labour.

Bar Medium

Boiler Fault Code Bar

Also written as BAR — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 7 July 2026

Fault code 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 struggling to detect the temperature of your hot water supply, so it has safely suspended hot water production to prevent issues. (As reported on Heatline Capriz 25S 28S)

Pick your boiler brand for the Bar fix

Heatline Bar 1 model

Source

Information for the 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