How much does it cost to fix Halstead error code E31?

Typical repair cost for the Halstead E31 fault is £120-200 including labour.

E31 Medium

Halstead E31 Fault Code

Q: What does the Halstead E31 fault code mean?

Your boiler is having trouble 'talking' to its external wall-mounted controller, meaning it has stopped responding to your temperature settings.

The Halstead E31 fault code means: your boiler is having trouble 'talking' to its external wall-mounted controller, meaning it has stopped responding to your temperature settings.. It appears on 6 Halstead models in our database.

Technical description: Remote control communication error (if fitted)

Typical repair cost £120-200 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

Find a Gas Safe engineer

Search the official register for a qualified engineer in your area.

Gas Safe Register →

Halstead models that show the E31 fault code

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

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 E31 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