High
E44 on Biasi Basica Combi

Your boiler's internal computer is having trouble communicating with the gas valve, which means it cannot safely light the flame to provide heating or hot water.

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

Gas valve command 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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