What does the Halstead Safety Lockout (Red LED) fault code mean?

Your boiler has stopped working because it failed to start, which could be due to a simple supply issue or a more complex internal fault.

How much does it cost to fix Halstead error code Safety Lockout (Red LED)?

Typical repair cost for the Halstead Safety Lockout (Red LED) fault is £120-250 including labour.

Burner has failed to light and gone to ignition lock-out and possibly overheat cut-out.

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

Lockout fault with a reset-needed pattern.

Older boilers — thermocouple, draught, gas supply.

Safety-critical — turn off, read this.