High
6P2 on Ariston HS Premium

Your boiler is struggling to detect the necessary airflow required to burn gas safely, so it has stopped working to prevent a potential risk.

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description

Fan air pressure switch error

Engineer required

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

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