Prima F40 - No hot water or heating?

Hi,

My Prima F40 boiler is doing nothing when hot water and/or heating is turned on. The heating pump kicks in but there is no activity in the boiler at all. No fan, no pilot light, no relay activity, no ignition... Nothing.

Last september I replaced the PCB capacitors as I was getting the fan cycling issue and it hasn't missed a beat since.

Any suggestions on where to start with this would be much appreciated.

Cheers,
Jon.