High
lockout light on Ferroli Tempra

Your boiler has safety-locked itself to prevent damage and simply needs a manual restart to try and fire up again.

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

Boiler shutdown requiring the on/off/reset switch (A) to be turned clockwise against the spring tension to the reset position and released.

Engineer required

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

Find a Gas Safe engineer
Search the official register →

Related fault codes

Related guides you might find useful