Emergency
E58 on Biasi Basica Combi

Your boiler has been filled with too much water, causing the system pressure to rise above the safe operating limit.

Act immediately

Turn off your boiler and stop using gas appliances. Call a Gas Safe engineer now. This fault can be dangerous if ignored.

Technical description

Filling function of C.H. water completed, but pressure is higher than the maximum pressure for boiler filling.

Engineer required

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

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