Technical description
Ignition fault
What causes this fault?
This fault occurs when the boiler has tried to ignite several times but failed to detect a flame. The most common reason is a temporary interruption in the gas supply or a blockage in the pipe that carries away waste water. It can also be caused by wear and tear on the internal components that produce the spark or control the gas flow.
This fault is much more common during freezing winter temperatures, as the external condensate pipe can freeze and cause the boiler to shut down for safety.
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.