How much does it cost to fix Worcester Bosch error code FAULT POINT D?

Typical repair cost for the Worcester Bosch FAULT POINT D fault is £150-350 including labour.

FAULT POINT D High

Worcester Bosch FAULT POINT D Fault Code

Q: What does the Worcester Bosch FAULT POINT D fault code mean?

Your boiler has detected a critical internal error and has safely shut itself down to prevent damage, meaning your heating and hot water will not work until it is reset or repaired.

Also written as FAULTPOINTD — same fault.

The Worcester Bosch FAULT POINT D fault code means: your boiler has detected a critical internal error and has safely shut itself down to prevent damage, meaning your heating and hot water will not work until it is reset or repaired.. It appears on 2 Worcester Bosch models in our database.

Technical description: Lockout light on constantly (on or off if burner light is off)

Typical repair cost £150-350 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Worcester Bosch models that show the FAULT POINT D fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Worcester Bosch FAULT POINT D fault code information on this page is sourced and cross-checked against the official Worcester Bosch service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026