Logic Heat 15 problem

[Cm19820]

Hi all, having an issue with a Logic Heat Only. On a few occasions early this year the boiler was going to fault code L2/F2. The electrodes, gas valve, sump, syphon, and spark gen were replaced. All was well for a few weeks until it happened again, then the fan was replaced. All fine until now, the exact same is happening again. The boiler always fires up on the 2nd reset though. Short of replacing the PCB I'm out of ideas (the boiler will end up being like triggers broom at this rate!)

Any thoughts/opinions most welcome....

 

[Deleted member 120897]

Tell your engineer to check the rectification lead.