High
E44 on Biasi Antares Combi

Your boiler has detected a communication problem or a physical fault with the temperature sensor that monitors the main heating water circuit.

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

Main circuit temp. probe, Main electronic p.c.b.

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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