How much does it cost to fix Halstead error code Overheat LED?

Typical repair cost for the Halstead Overheat LED fault is £120-250 including labour.

Overheat LED High

Halstead Overheat LED Fault Code

Q: What does the Halstead Overheat LED fault code mean?

Your boiler has detected that it is running too hot and has automatically shut itself down to prevent any damage or safety hazards.

Also written as OVERHEATLED — same fault.

The Halstead Overheat LED fault code means: your boiler has detected that it is running too hot and has automatically shut itself down to prevent any damage or safety hazards.. It appears on 2 Halstead models in our database.

Technical description: Overheat situation. Possible causes: Lack of water, Lack of water flow, Faulty overheat thermostat

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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Halstead models that show the Overheat LED fault code

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

Source

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

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