39 High

Halstead 39 Fault Code

The Halstead 39 fault code means: your boiler's computer memory chip is not communicating correctly with the main controls, meaning the unit cannot safely start the burner.. It appears on 5 Halstead models in our database.

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description: BCC Error/ No flame. BCC installation failed. Refit BCC in accordance with BCC fitting instructions (BCC’s only fitted to replacement PCB’s)
Typical repair cost £150-300 (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 39 fault code

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

Source

Halstead 39 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 7 July 2026