What does the Grant Lock-out fault code mean?

Your boiler has stopped working as a safety precaution because it failed to ignite, so it is currently waiting for a manual reset.

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.

Ensure your oil tank has sufficient fuel and the supply valve is open

Burner safety lock-out (indicated by button on burner)

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.