What does the Grant Lock-out (Red neon) fault code mean?

Your boiler has stopped working because the flame inside failed to light or stay on.

How much does it cost to fix Grant error code Lock-out (Red neon)?

Typical repair cost for the Grant Lock-out (Red neon) fault is £120-250 including labour.

Burner has failed to ignite or flame has been lost. Press the reset button on the burner control box if it is lit.

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.

Safety-critical — turn off, read this.

7 signs repair isn't worth it anymore.