How much does it cost to fix boiler error code FAIL POINT I / Sensor Fault?

Typical repair cost for the boiler FAIL POINT I / Sensor Fault fault is £150-250 including labour.

FAIL POINT I / Sensor Fault High

Boiler Fault Code FAIL POINT I / Sensor Fault

Also written as FAILPOINTISENSORFAULT — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code FAIL POINT I / 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 an internal communication problem with its sensors or electrical wiring, causing it to stop operating to ensure your safety. (As reported on Worcester Bosch 24/28CDi II RSF)

Pick your boiler brand for the FAIL POINT I / Sensor Fault fix

Worcester Bosch FAIL POINT I / Sensor Fault 2 models

Source

Information for the FAIL POINT I / 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