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

Typical repair cost for the Worcester Bosch Failure at point Q fault is £120-190 including labour.

Failure at point Q Medium

Worcester Bosch Failure at point Q Fault Code

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

Your boiler's internal pump is staying on even after the water has cooled down, which is usually caused by a faulty internal sensor.

Also written as FAILUREATPOINTQ — same fault.

The Worcester Bosch Failure at point Q fault code means: your boiler's internal pump is staying on even after the water has cooled down, which is usually caused by a faulty internal sensor.. It appears on 1 Worcester Bosch model in our database.

Technical description: Pump Overrun Test: Pump does not stop when primary temperature drops below 60°C. Replace pump overrun thermostat.

Typical repair cost £120-190 (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 Q fault code

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

24CDi BF Repair: £120-190

Source

Worcester Bosch Failure at point Q 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