Reset LED is lit High

Halstead Reset LED is lit Fault Code

Also written as RESETLEDISLIT — same fault.

The Halstead Reset LED is lit fault code means: your boiler has stopped working because it has detected an issue with the water temperature or the ignition process and needs to be reset.. It appears on 1 Halstead model 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: Water system overheating or ignition failure.
Typical repair cost £120-250 (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 Reset LED is lit fault code

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

Source

Halstead Reset LED is lit 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