URGENT Ideal gas boiler sudden ignition lockout

[mat1807]

Hello - I have a Ideal 35kw combi gas boiler. Everything was fine until I switched the heating on for the first time this year. Then I got a L2 Ignition lockout error, and resetting the boiler doesn't fix it. The gas is definitely on, and the pressure is fine - any ideas? Thank you!

 

[cjg]

empty the condence trap see if that sorts it,

 

[Last Plumber]

I would advise you to use a gas safe registered engineer to repair it for you.