High
6 1 0 on Ariston HS Premium

Your boiler has detected a disconnection or a broken electrical connection within its internal temperature monitoring system, causing it to stop operating for safety reasons.

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

Open hot melt probe

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.

Find a Gas Safe engineer
Search the official register →

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