How much does it cost to fix boiler error code Sensor Fault?

Typical repair cost for the boiler Sensor Fault fault is £120-180 including labour.

Sensor Fault High

Boiler Fault Code Sensor Fault

Also written as SENSORFAULT — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 31 August 2026

Fault code Sensor Fault appears across 3 boiler brands and 5 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 accurately detect the temperature of the water, which is preventing it from heating your home or water reliably. (As reported on Potterton Performa 24i HE)

Pick your boiler brand for the Sensor Fault fix

Baxi Sensor Fault 1 model Potterton Sensor Fault 1 model Worcester Bosch Sensor Fault 3 models

Source

Information for the 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 31 August 2026