Technical description
Burner – Natural Gas Aeromatic, Ref. AACC 2233//0055 33558842
What causes this fault?
This fault occurs when the boiler's internal computer detects that the burner is not firing correctly or the flame signal is too weak to operate safely. It is usually caused by a failure in the gas delivery system or worn-out ignition components that can no longer create a spark. Over time, carbon buildup on the burner or a faulty gas valve prevents the steady flow of fuel needed to maintain heat.
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.