How much does it cost to fix Heatline error code F24?

Typical repair cost for the Heatline F24 fault is £120-250 including labour.

F24 High

Heatline F24 Fault Code

Q: What does the Heatline F24 fault code mean?

Your boiler is struggling to move water around your heating system correctly, which is causing it to shut down to prevent overheating.

The Heatline F24 fault code means: your boiler is struggling to move water around your heating system correctly, which is causing it to shut down to prevent overheating.. It appears on 8 Heatline models in our database.

Technical description: Water circulation fault

Typical repair cost £120-250 (including labour)

Engineer required

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

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Heatline models that show the F24 fault code

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

Capriz Plus Repair: £120-250
Centurion 25 Repair: £120-250
Compact 24 Repair: £120-250
Compact 30 Repair: £120-250
Monza Repair: £120-250
Solaris Repair: £120-250
Vizo 24 Repair: £120-250
Vizo 28 Repair: £120-250

Source

Heatline F24 fault code information on this page is sourced and cross-checked against the official Heatline service / installation manuals for each affected model.

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