No ignition on combi boiler

[was600]

Hi all
I have a Biasi M90e 24s combi boiler.
Yesterday eveything worked fine. I had hot water and for the first time this year i switched on the cental heating. All worked fine.
Today i ran the hot water tap and the boiler made the right sounds but no ignition.
I checked and topped up the water to 1.5bar but still no flame.
I have undione the large screw on the pump to release an air.
The green light is flashing every 2 seconds which means the boiler is operational.
Can anyone help please

 

[Agile]

Is it working on CH today?

Is it working on DHW today?

Tony

 

[was600]

No. Still no ignition.

 

[twgas]

Does anything happen when there is a demand?

 

[was600]

Yeah it goes through the motions of starting , but when it's time to spark and ignite. It just doesn't happen.

 

[twgas]

Then it sounds like you need a gas safe engineer as DIY gas advice is not allowed