How much does it cost to fix Halstead error code 16?

Typical repair cost for the Halstead 16 fault is £90-£160 including labour.

16 High

Halstead 16 Fault Code

Q: What does the Halstead 16 fault code mean?

Your boiler has stopped working because one of its internal temperature sensors has broken or is sending an incorrect reading, preventing the system from firing up.

The Halstead 16 fault code means: your boiler has stopped working because one of its internal temperature sensors has broken or is sending an incorrect reading, preventing the system from firing up.. It appears on 8 Halstead models in our database.

Technical description: No ignition. CH Return thermistor failure

Typical repair cost £90-£160 (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 16 fault code

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

Dimplex Combi Repair: £90-160
Dimplex System Repair: £90-£160
Eden Repair: £120-200
Eden 80 Repair: £120-200
Eden CBX/SBX Repair: £120-200
Netaheat 10/16E Repair: £120-200
Wickes 100 Repair: £120-200
Wickes 80 Repair: £120-200

Source

Halstead 16 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