Riello Oil Burner Lockout light boiler appears to work fine

[HighlandBoiler]

Hi. I've got an old Camray 5 Combi Boiler with Riello burner. Boiler has not been on for 6 months. Fired up today and red lockout light appears just before burner ignites. Central heating and hot water appear be working fine. Boiler does not lockout or requires to be reset. Flue appears fine. Followed Riello flowcharts for error finding but none appear as the boiler works. I've attached video and photo. Any advice appreciated.

Video https://www.dropbox.com/s/xquo12wtn58fdm5/riello.mp4?dl=0

 

[Johntheo5]

Does the lockout light go out after the boiler fires up without resetting it?