What does the Potterton Overheat Thermostat fault code mean?

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

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

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

The LED will go to flashing Red. Manual re-setting required if an overheat condition occurs.

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

Each noise points to a different fault.

Work through these before the call-out.

Lockout fault with a reset-needed pattern.