What does the Saunier Duval E19 fault code mean?

Your boiler has lost the connection to the sensor that monitors the temperature of your heating water, so it has shut down to prevent overheating.

How much does it cost to fix Saunier Duval error code E19?

Typical repair cost for the Saunier Duval E19 fault is £120-200 including labour.

Central heating flow thermistor disconnected

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.