How much does it cost to fix boiler error code DHW SENSOR LOCKOUT?

Typical repair cost for the boiler DHW SENSOR LOCKOUT fault is £90-180 including labour.

DHW SENSOR LOCKOUT High

Boiler Fault Code DHW SENSOR LOCKOUT

Also written as DHWSENSORLOCKOUT — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code DHW SENSOR LOCKOUT 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 a problem with the sensor that monitors your hot water, so it has shut down that function to prevent overheating. (As reported on Johnson Starley J32 System ET)

Pick your boiler brand for the DHW SENSOR LOCKOUT fix

Johnson Starley DHW SENSOR LOCKOUT 1 model

Source

Information for the DHW SENSOR LOCKOUT 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