What does the Ariston A11 fault code mean?

Your boiler is struggling to clear exhaust gases out through the flue, so it has safely shut itself down to prevent fumes from building up.

How much does it cost to fix Ariston error code A11?

Typical repair cost for the Ariston A11 fault is £120-250 including labour.

Air Pressure Switch

This is a high 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.

7 signs repair isn't worth it anymore.