How much does it cost to fix Halstead error code OVERHEAT NEON?

Typical repair cost for the Halstead OVERHEAT NEON fault is £120-250 including labour.

OVERHEAT NEON High

Halstead OVERHEAT NEON Fault Code

Q: What does the Halstead OVERHEAT NEON fault code mean?

Your boiler has automatically shut itself down because it detected that it is getting too hot, likely due to a circulation problem.

Also written as OVERHEATNEON — same fault.

The Halstead OVERHEAT NEON fault code means: your boiler has automatically shut itself down because it detected that it is getting too hot, likely due to a circulation problem.. It appears on 1 Halstead model in our database.

Technical description: Neon light indicating that the boiler overheat thermostat has tripped.

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 NEON fault code

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

Hero Repair: £120-250

Source

Halstead OVERHEAT NEON 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