What does the Potterton Overheat LOCKOUT fault code mean?

Your boiler has detected that it has become too hot and has automatically shut itself down to prevent internal damage.

How much does it cost to fix Potterton error code Overheat LOCKOUT?

Typical repair cost for the Potterton Overheat LOCKOUT fault is £120-250 including labour.

Manual reset. The 'Lockout' (Red) light will flash. Occurs if an overheat condition occurs or the overheat stat is off.

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

Almost always a stuck diverter valve on combis.

Each noise points to a different fault.

Work through these before the call-out.