How much does it cost to fix boiler error code DHW sensor fault?

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

DHW sensor fault Low

Boiler Fault Code DHW sensor fault

Also written as DHWSENSORFAULT — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code DHW sensor fault appears across 1 boiler brand and 2 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 a faulty sensor responsible for hot water temperature, so it is now running in a restricted 'backup' mode to ensure you still have hot water available. (As reported on Heatline Capriz 28)

Pick your boiler brand for the DHW sensor fault fix

Heatline DHW sensor fault 2 models

Source

Information for the DHW sensor fault 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 27 April 2026