How much does it cost to fix Worcester Bosch error code Failure at point O?

Typical repair cost for the Worcester Bosch Failure at point O fault is £180-450 including labour.

Failure at point O High

Worcester Bosch Failure at point O Fault Code

Q: What does the Worcester Bosch Failure at point O fault code mean?

Your boiler continues to fire even after you have turned off your hot water tap, which can cause the internal temperature to rise too high.

Also written as FAILUREATPOINTO — same fault.

The Worcester Bosch Failure at point O fault code means: your boiler continues to fire even after you have turned off your hot water tap, which can cause the internal temperature to rise too high.. It appears on 1 Worcester Bosch model in our database.

Technical description: Burner does not shut down immediately when the tap is turned off. Check flow switch and main driver board.

Typical repair cost £180-450 (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 Failure at point O fault code

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

24CDi BF Repair: £180-450

Source

Worcester Bosch Failure at point O 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