How much does it cost to fix Halstead error code E11?

Typical repair cost for the Halstead E11 fault is £120-250 including labour.

E11 Emergency

Halstead E11 Fault Code

Q: What does the Halstead E11 fault code mean?

Your boiler has detected heat or a flame inside when it should be turned off, so it has purposefully locked itself out to keep you safe.

The Halstead E11 fault code means: your boiler has detected heat or a flame inside when it should be turned off, so it has purposefully locked itself out to keep you safe.. It appears on 6 Halstead models in our database.

Technical description: Flame detection error (false flame)

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 E11 fault code

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

Eden Repair: £120-250
Eden 80 Repair: £120-250
Eden CBX/SBX Repair: £120-250
Netaheat 10/16E Repair: £120-250
Wickes 100 Repair: £120-250
Wickes 80 Repair: £120-250

Source

Halstead E11 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