What does the Saunier Duval 02 fault code mean?

Your boiler is failing to clear combustion gases, so it has safely shut down to prevent any risk of fumes entering your home.

How much does it cost to fix Saunier Duval error code 02?

Typical repair cost for the Saunier Duval 02 fault is £150-300 including labour.

Air fault, pressure switch, no power to fan

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

Six most common causes of dropping pressure.

Each noise points to a different fault.

Safety-critical — turn off, read this.