What does the Grant Lock-out fault code mean?

Your boiler has stopped working because the burner failed to ignite, so it has safely shut itself down to prevent fuel from building up.

How much does it cost to fix Grant error code Lock-out?

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

The burner does not light and the 'Lock-out' reset button lights.

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.